LIGO/Virgo S200105ae
GCN Circular 26837
Subject
LIGO/Virgo S200105ae: Upper limits from Konus-Wind observations
Date
2020-01-21T08:56:07Z (6 years ago)
From
Anna Ridnaia at Ioffe Institute <ridnaia@mail.ioffe.ru>
A. Ridnaia, S. Golenetskii, R.Aptekar, D. Frederiks,
M. Ulanov, D. Svinkin, A. Tsvetkova, A. Lysenko, and T. Cline,
on behalf of the Konus-Wind team, report:
Konus-Wind (KW) was observing the whole sky at the time of the
LIGO/Virgo event S200105ae (2020-01-05 16:24:26.057 UTC, hereafter T0;
LIGO/Virgo Collaboration GCN Circ. 26640).
No triggered KW GRBs happened ~4 days before and ~6 days
after T0. The closest waiting-mode GRB was observed ~5 hours after T0.
Using waiting-mode data within the interval T0 +/- 100 s,
we found no significant (> 5 sigma) excess over the background
in both KW detectors on temporal scales from 2.944 s to 100 s.
We estimate an upper limit (90% conf.) on the 20 - 1500 keV fluence
to 9.2x10^-7 erg/cm^2 for a burst lasting less than 2.944 s and having a
typical KW short GRB spectrum (an exponentially cut off power law with
alpha =-0.5 and Ep=500 keV). For a typical long GRB spectrum (the Band
function with alpha=-1, beta=-2.5, and Ep=300 keV), the corresponding
limiting peak flux is 2.5x10^-7 erg/cm^2/s (20 - 1500 keV, 2.944 s scale).
All the quoted values are preliminary.
GCN Circular 26810
Subject
LIGO/Virgo S200105ae: More candidates from the Zwicky Transient Facility
Date
2020-01-18T03:33:23Z (6 years ago)
From
Tomas Ahumada at U. of Maryland <tahumada@astro.umd.edu>
Tomas Ahumada (UMD), Igor Andreoni (Caltech), Viraj Karambelkar (Caltech),
Gaurav Waratkar (IITB), Harsh Kumar (IITB), Shreya Anand (Caltech), Michael
W. Coughlin (Caltech), Leo Singer (NASA GSFC), Mansi M. Kasliwal (Caltech),
Simeon Reusch (DESY), Robert Stein (DESY), Matthew Graham (Caltech), Jesper
Sollerman (OKC)
on behalf of the Zwicky Transient Facility (ZTF) and Global Relay of
Observatories Watching Transients Happen (GROWTH) collaborations
We serendipitously observed the localization region of the gravitational
wave trigger S200105ae (LVC, GCN #26640) with the Palomar 48-inch telescope
equipped with the 47 square degree Zwicky Transient Facility camera (ZTF,
Bellm et al. 2019, Graham et al. 2019) during the regular ZTF survey (i.e.,
without triggering further ToO observations in addition to those described
in Anand et al, GCN #26662). The images were processed in real-time through
the ZTF reduction and image subtraction pipelines at IPAC (Masci et al.
2019).
We queried the ZTF alert stream using Kowalski (Duev et al., 2019) and
AMPEL (Nordin et al., 2019), requiring at least 2 detections separated by
at least 15 minutes to select against moving objects. Furthermore, we
cross-matched our candidates with the Minor Planet Center to flag known
asteroids. We require that no spatially coincident ZTF alert has been
issued before the detection time of S200105ae. New candidates were found
within the 95% probability contour of S200105ae, in addition to those
reported by Stein et al. (GCN #26673). The new transient candidates are
presented in the table below.
+--------------+-----------+-------------+--------------+--------+------+----------+-----------+
| Name | IAU Name | RA | Dec | filter | mag |
MJD | Notes |
+--------------+-----------+-------------+--------------+--------+------+----------+-----------+
| ZTF20aaexpwt | AT2020adi | 06:26:01.30 | +11:33:38.85 | r | 19.8 |
58864.31 | (a)(d) |
| ZTF20aaertil | AT2020pu | 14:52:25.86 | +31:01:18.50 | g | 19.7 |
58863.45 | (b)(c)(1) |
| ZTF20aaevbzl | AT2020adf | 13:26:41.27 | +30:52:30.68 | g | 20.3 |
58864.44 | (d) |
| ZTF20aagiipi | AT2020adl | 15:33:24.61 | +42:02:36.70 | r | 20.1 |
58864.52 | (e)(2) |
| ZTF20aagijez | AT2020adm | 15:04:13.18 | +27:29:04.19 | r | 19.9 |
58864.52 | (e)(3) |
| ZTF20aagiiik | AT2020abl | 16:19:09.94 | +53:45:38.26 | r | 20.3 |
58864.52 | (e)(b) |
| ZTF20aafexle | AT2020adn | 04:20:31.22 | -09:30:28.20 | r | 19.9 |
58862.19 | (e) |
| ZTF20aaflndh | AT2020xz | 01:22:38.14 | -06:49:34.31 | g | 19.2 |
58863.12 | (c) |
| ZTF20aafduvt | AT2020ado | 03:36:28.54 | -07:49:34.52 | g | 20.1 |
58862.14 | (e) |
| ZTF20aafefxe | AT2020adt | 07:47:24.18 | +14:42:23.82 | r | 20.9 |
58863.41 | (d) |
| ZTF20aafkkoy | AT2020adp | 13:40:59.99 | +40:48:49.03 | r | 19.3 |
58862.4 | (d) |
| ZTF20aafaoki | AT2020adq | 05:13:13.80 | +05:09:56.55 | r | 19.6 |
58861.19 | (d) |
| ZTF20aafujqk | AT2020adg | 17:57:00.41 | +10:32:20.31 | r | 18.6 |
58863.57 | (e) |
| ZTF20aafksha | AT2020adr | 13:43:54.45 | +38:25:13.82 | g | 20.0 |
58862.5 | (e)(4) |
| ZTF20aagjemb | AT2020adh | 14:51:25.85 | +45:20:41.18 | r | 20.3 |
58864.48 | (c)(5) |
| ZTF20aafdxkf | AT2020ads | 03:42:07.08 | -03:11:39.05 | r | 20.2 |
58862.2 | (d) |
| ZTF20aafukgx | AT2020adj | 18:23:21.44 | +17:49:31.65 | r | 19.2 |
58863.58 | (a)(e) |
| ZTF20aafanxk | AT2020adk | 05:35:36.04 | +11:46:15.31 | r | 19.4 |
58861.2 | (a)(e) |
+--------------+-----------+-------------+--------------+--------+------+----------+-----------+
(a) Galactic latitude (|b_gal| < 15)
(b) first reported by ALeRCE
(c) close to the center of an apparently small galaxy
(d) hostless
(e) offset from the center of the possible host
(1) photoz = 0.0745 (SDSS)
(2) photoz = 0.127 (SDSS)
(3) specz = 0.061 (SDSS) - on a star-forming galaxy
(4) specz = 0.167 (SDSS)
(5) photoz = 0.299 (SDSS)
Additional comments:
ZTF20aafexle has red color g-r~0.5 mag
ZTF20aaevbzl is fading in g-band about ~0.15 mag per day.
ZTF20aafkkoy is a hostless transient rising in r-band.
Future observations are planned and we encourage follow-up.
ZTF and GROWTH are worldwide collaborations comprising Caltech, USA; IPAC,
USA, WIS, Israel; OKC, Sweden; JSI/UMd, USA; U Washington, USA; DESY,
Germany; MOST, Taiwan; UW Milwaukee, USA; LANL USA; Tokyo Tech, Japan;
IITB, India; IIA, India; LJMU, UK; TTU, USA; SDSU, USA and USyd, Australia.
ZTF acknowledges the generous support of the NSF under AST MSIP Grant No
1440341. GROWTH acknowledges the generous support of the NSF under PIRE
Grant No 1545949. Alert distribution service provided by DIRAC@UW
(Patterson et al. 2019). Alert filtering and follow-up coordination is
being undertaken by the GROWTH marshal system (Kasliwal et al. 2019). Alert
database searches are done using the Kowalski infrastructure (Duev et al.,
2019) and with AMPEL (Nordin et al. 2019).
GCN Circular 26703
Subject
LIGO/Virgo S200105ae: AT2020pq, AT2020ps and AT2020pv 10.4m GTC spectroscopy
Date
2020-01-11T13:33:33Z (6 years ago)
From
Alberto J. Castro-Tirado at IAA-CSIC <ajct@iaa.es>
A. J. Castro-Tirado (IAA-CSIC), A. F. Valeev (SAO-RAS), Y.-D. Hu and E.
Fernandez-Garcia (IAA-CSIC), V. Sokolov (SAO-RAS), R. Sanchez-Ramirez
(INAF-IAPS) and J. Font (GRANTECAN, IAC, ULL), on behalf of a larger
collaboration, report:
Following the detection of AT2020pq/ZTF20aaervyn, AT2020ps/ZTF20aaerqbx
and AT2020pv/ZTF20aaertpj (Stein et al. GCNC 26673) within the error
area of the GW event S200105ae (LVC, GCNC 26640), we obtained optical
spectroscopy covering the range 3700-7400 A with the 10.4m GTC telescope
equipped with OSIRIS in La Palma (Spain) starting on Jan 11, 06:03 UT.
For AT2020pq/ZTF20aaervyn, the GTC spectrum is consistent with a SN Ia
close to maximum, at redshift z = 0.112 +/- 0.004, consistent with the
redshift of the host galaxy derived from the emission lines (z = 0.1146
+/- 0.0005).
For AT2020ps/ZTF20aaerqbx, the GTC spectrum is consistent with a SN IIp
about 5 days prior to maximum at redshift z = 0.098 +/- 0.016,
consistent with the redshift of the host galaxy derived from the
emission lines (z = 0.0780 +/- 0.0005).
For AT2020pv/ZTF20aaertpj, the GTC spectrum is consistent with a SN Ib
close to maximum at redshift z = 0.026 +/- 0.006, consistent with the
redshift of the host galaxy derived from the emission lines (z = 0.0280
�� 0.0005).
Therefore we consider that AT2020pq/ZTF20aaervyn, AT2020ps/ZTF20aaerqbx
and AT2020pv/ZTF20aaertpj are unrelated to the S200105ae GW alert.
This message can be quoted.
GCN Circular 26702
Subject
LIGO/Virgo S200105ae: AT2020pp and AT2020py 10.4m GTC spectroscopy
Date
2020-01-11T11:34:38Z (6 years ago)
From
Alberto J. Castro-Tirado at IAA-CSIC <ajct@iaa.es>
A. F. Valeev (SAO-RAS), Y.-D. Hu, A. J. Castro-Tirado and E.
Fernandez-Garcia (IAA-CSIC), V. Sokolov (SAO-RAS), I. Carrasco and A.
Castellon (UMA), S. Anand (Caltech) and J. Font (GRANTECAN, IAC, ULL),
on behalf of a larger collaboration, report:
Following the detection of AT2020pp/ZTF20aaervoa, and
AT2020py/ZTF20aaerxsd (Stein et al. GCNC 26673) within the error area of
the GW event S200105ae (LVC, GCNC 26640), we obtained optical spectra
covering the range 3700-7400 A with the 10.4m GTC telescope equipped
with OSIRIS in La Palma (Spain) starting on Jan 10, 04:17 UT, under poor
seeing conditions.
For AT2020pp/ZTF20aaervoa, the GTC spectrum is consistent with a SN IIP
at about 3 days after maximum at redshift z = 0.046 +/- 0.003,
consistent with the redshift of the host galaxy derived from the
emission lines (z = 0.0448 +/- 0.0005).
For AT2020py/ZTF20aaerxsd, the GTC spectrum is consistent with a SN Ia��
at about 3 days after maximum at redshift z = 0.055 +- 0.005, consistent
with the redshift of the host galaxy derived from the emission lines (z
=�� 0.0533 +/- 0.0005).
Therefore we consider that neither AT2020pp/ZTF20aaervoa nor
AT2020py/ZTF20aaerxsd are related to the S200105ae GW alert.
This message can be quoted.
GCN Circular 26701
Subject
LIGO/Virgo S200105ae: AT2020oo 10.4m GTC spectroscopy
Date
2020-01-11T09:47:25Z (6 years ago)
From
Alberto J. Castro-Tirado at IAA-CSIC <ajct@iaa.es>
Y.-D. Hu (IAA-CSIC), A. F. Valeev (SAO-RAS), A. J. Castro-Tirado and E.
Fernandez-Garcia (IAA-CSIC), V. Sokolov (SAO-RAS), I. Carrasco (UMA) and
M. D. Caballero Garcia (ASU-CAS) and J. Font (GRANTECAN, IAC, ULL), on
behalf of a larger collaboration, report:
Following the detection of AT2020oo/Gaia20add (Kostrzewa-Rutkowska et
al. GCNC 26686) within the error area of the GW event S200105ae (LVC,
GCNC 26640), we obtained an optical spectrum covering the range
3700-7400 A with the 10.4m GTC telescope equipped with OSIRIS in La
Palma (Spain) on Jan 10, 06:53 UT.
For AT2020oo/Gaia20add, a magnitude r'= 17.56 +/- 0.02 at 06:49 UT is
derived. The GTC spectrum is consistent with a SN Ia at redshift z =
0.0486 +/- 0.0005 (based on the emission lines of the host galaxy).
Therefore we consider that AT2020oo/Gaia20add is unrelated to the
S200105ae GW alert.
GCN Circular 26688
Subject
LIGO/Virgo S200105ae: Updated Sky Localization and EM-Bright Probabilities
Date
2020-01-09T18:17:27Z (6 years ago)
From
Peter Shawhan at U of Maryland/LSC <pshawhan@umd.edu>
The LIGO Scientific Collaboration and the Virgo Collaboration report:
We have conducted further analysis of the LIGO Livingston Observatory
(L1) and Virgo Observatory (V1) data around the time of the compact
binary merger (CBC) candidate S200105ae (GCN Circulars 26640,
26657). Parameter estimation has been performed using LALInference [1]
and a new sky map, LALInference.fits.gz,0, distributed via GCN Notice,
is available for retrieval from the GraceDB event page:
https://gracedb.ligo.org/superevents/S200105ae
The preferred sky map at this time is LALInference.fits.gz,0. For the
LALInference.fits.gz,0 sky map, the 90% credible region is 7373 deg2.
Marginalized over the whole sky, the a posteriori luminosity distance
estimate is 283 +/- 74 Mpc (a posteriori mean +/- standard deviation).
Based on posterior support from parameter estimation [1], under the
assumption that the candidate S200105ae is astrophysical in origin,
the probability that the lighter compact object has a mass < 3 solar
masses (HasNS) is 98%. Using the masses and spins inferred from the
signal, the probability of matter outside the final compact object
(HasRemnant) is <1%.
There is no change to our assessment of the significance of the
candidate. As noted in the previous Circulars, our examination of the
data indicates that the signal has greater significance than what was
calculated in real-time processing (and is still contained in the GCN
Notice), sufficient to warrant a public alert.
For further information about analysis methodology and the contents of
this alert, refer to the LIGO/Virgo Public Alerts User Guide
<https://emfollow.docs.ligo.org/userguide/>.
[1] Veitch et al. PRD 91, 042003 (2015)
GCN Circular 26687
Subject
LIGO/Virgo S200105ae : No significant candidates in TAROT - FRAM - GRANDMA observations.
Date
2020-01-09T15:41:16Z (6 years ago)
From
Damien Turpin at NAOC (CAS) <dturpin-astro@hotmail.com>
D. Turpin (AIM-CEA), A. Coleiro (APC), S. Karpov (FZU), A. Klotz (IRAP),
M. Boer (Artemis), N. Christensen (Artemis), L. Eymar (Artemis),
K. Noysena (Artemis, IRAP), M. Masek (FZU), M. Prouza (FZU),
S. Antier (APC), D. Corre (IJCLab), M. Coughlin (Caltech),
D. Coward (OzGrav-UWA), J.-G. Ducoin (IJCLab), B. Gendre (OzGrav-UWA),
P. Hello (IJCLab), D. A. Kann (HETH/IAA-CSIC), N. Kochiashvili (Iliauni),
C. Lachaud (APC), N. Leroy (IJCLab), C. Thoene (HETH/IAA-CSIC),
X. Wang (THU)
report on behalf of the FRAM, TAROT and GRANDMA collaborations.
We performed tiled observations of LIGO/Virgo S200105ae event with the
FRAM-Auger, FRAM-CTA-N, TAROT-Calern (TCA), TAROT-Chili (TCH)
telescopes.
FRAM-Auger is located at Pierre Auger Observatory. FRAM-CTA-N is
located at Observatorio del Roque de los Muchachos. TCA is located at
Calern site at the Cote d'Azur observatory. TCH is located at La Silla
ESO observatory (LaS/ESO).
The following table shows for each telescope: the delay in minutes
from the trigger, which filter is used, the field of view of the
telescope in degrees and the typical limiting magnitude (AB mag) for a
given exposure in seconds (s).
+-------------+---------+----------+-------------+------------+
| Telescope | Delay | Filter | f.o.v. | Limiting |
| | [min] | | [deg] | Mag. |
|-------------+---------+----------+-------------+------------|
| FRAM-Auger | 2052 | R | 1.0 x 1.0 | 18.0 (60s) |
| FRAM-CTA-N | 1683 | R | 0.45 x 0.45 | 17.0 (90s) |
| TCA | 1650 | Clear | 1.9 x 1.9 | 18.0 (60s) |
| TCH | 3542 | Clear | 1.9 x 1.9 | 18.0 (60s) |
+-------------+---------+----------+-------------+------------+
We performed the following joint tiled observations [1] :
+-------------+------------+------------+---------+---------+---------+
| Telescope | TStart | TEnd | RA | DEC | Proba |
| | [UTC] | [UTC] | [deg] | [deg] | [%] |
|-------------+------------+------------+---------+---------+---------|
| FRAM-Auger | 2020-01-07 | 2020-01-07 | 29.917 | -13.135 | <0.1 |
| | 02:35:28 | 02:39:55 | | | |
| FRAM-Auger | 2020-01-07 | 2020-01-07 | 31.173 | -15.081 | <0.1 |
| | 02:40:32 | 02:44:59 | | | |
| FRAM-Auger | 2020-01-07 | 2020-01-07 | 28.920 | -13.135 | <0.1 |
| | 02:45:34 | 02:50:01 | | | |
| FRAM-Auger | 2020-01-07 | 2020-01-07 | 31.348 | -16.054 | <0.1 |
| | 02:50:37 | 02:55:04 | | | |
| FRAM-Auger | 2020-01-07 | 2020-01-07 | 30.084 | -14.108 | <0.1 |
| | 02:55:38 | 03:00:05 | | | |
| FRAM-Auger | 2020-01-07 | 2020-01-07 | 30.168 | -15.081 | <0.1 |
| | 03:00:42 | 03:05:09 | | | |
| FRAM-Auger | 2020-01-07 | 2020-01-07 | 30.337 | -16.054 | <0.1 |
| | 03:05:46 | 03:10:13 | | | |
| FRAM-Auger | 2020-01-07 | 2020-01-07 | 45.780 | -20.919 | <0.1 |
| | 03:10:54 | 03:15:21 | | | |
| FRAM-Auger | 2020-01-07 | 2020-01-07 | 108.698 | -13.135 | <0.1 |
| | 03:16:06 | 03:20:33 | | | |
| FRAM-Auger | 2020-01-07 | 2020-01-07 | 33.559 | -17.027 | <0.1 |
| | 03:21:20 | 03:25:47 | | | |
| FRAM-Auger | 2020-01-07 | 2020-01-07 | 99.114 | -31.622 | <0.1 |
| | 03:26:30 | 03:30:57 | | | |
| FRAM-Auger | 2020-01-07 | 2020-01-07 | 29.081 | -14.108 | <0.1 |
| | 03:31:44 | 03:36:11 | | | |
| FRAM-Auger | 2020-01-07 | 2020-01-07 | 32.542 | -17.027 | <0.1 |
| | 03:36:49 | 03:41:16 | | | |
| FRAM-Auger | 2020-01-07 | 2020-01-07 | 43.699 | -20.919 | <0.1 |
| | 03:41:53 | 03:46:20 | | | |
| FRAM-Auger | 2020-01-07 | 2020-01-07 | 26.630 | -10.216 | <0.1 |
| | 03:46:59 | 03:51:26 | | | |
| FRAM-Auger | 2020-01-07 | 2020-01-07 | 34.773 | -18.000 | <0.1 |
| | 03:52:03 | 03:56:30 | | | |
| FRAM-Auger | 2020-01-07 | 2020-01-07 | 44.740 | -20.919 | <0.1 |
| | 03:57:08 | 04:01:35 | | | |
| FRAM-Auger | 2020-01-07 | 2020-01-07 | 105.087 | -20.919 | <0.1 |
| | 04:02:17 | 04:06:44 | | | |
| FRAM-Auger | 2020-01-07 | 2020-01-07 | 96.787 | -34.541 | <0.1 |
| | 04:07:22 | 04:11:49 | | | |
| FRAM-Auger | 2020-01-07 | 2020-01-07 | 99.310 | -30.649 | <0.1 |
| | 04:12:24 | 04:16:51 | | | |
| ----- | ----- | ----- | ----- | ----- | ----- |
| FRAM-CTA-N | 2020-01-06 | 2020-01-06 | 39.057 | -16.814 | <0.1 |
| | 20:26:56 | 20:31:02 | | | |
| FRAM-CTA-N | 2020-01-06 | 2020-01-06 | 37.480 | -16.377 | <0.1 |
| | 20:31:17 | 20:35:23 | | | |
| FRAM-CTA-N | 2020-01-06 | 2020-01-06 | 42.037 | -16.377 | <0.1 |
| | 20:35:40 | 20:39:46 | | | |
| FRAM-CTA-N | 2020-01-06 | 2020-01-06 | 38.504 | -16.377 | <0.1 |
| | 20:40:07 | 20:44:13 | | | |
| FRAM-CTA-N | 2020-01-06 | 2020-01-06 | 41.356 | -16.377 | <0.1 |
| | 20:44:30 | 20:48:36 | | | |
| FRAM-CTA-N | 2020-01-06 | 2020-01-06 | 41.799 | -16.814 | <0.1 |
| | 20:48:55 | 20:53:01 | | | |
| FRAM-CTA-N | 2020-01-06 | 2020-01-06 | 39.871 | -16.377 | <0.1 |
| | 20:53:23 | 20:57:29 | | | |
| FRAM-CTA-N | 2020-01-06 | 2020-01-06 | 40.428 | -16.814 | <0.1 |
| | 20:57:44 | 21:01:51 | | | |
| FRAM-CTA-N | 2020-01-06 | 2020-01-06 | 41.117 | -16.814 | <0.1 |
| | 21:02:10 | 21:06:16 | | | |
| FRAM-CTA-N | 2020-01-06 | 2020-01-06 | 40.988 | -17.251 | <0.1 |
| | 21:06:35 | 21:10:41 | | | |
| FRAM-CTA-N | 2020-01-06 | 2020-01-06 | 42.362 | -17.251 | <0.1 |
| | 21:11:01 | 21:15:07 | | | |
| FRAM-CTA-N | 2020-01-06 | 2020-01-06 | 35.999 | -15.066 | <0.1 |
| | 21:15:24 | 21:19:30 | | | |
| FRAM-CTA-N | 2020-01-06 | 2020-01-06 | 36.792 | -15.066 | <0.1 |
| | 21:19:53 | 21:23:58 | | | |
| FRAM-CTA-N | 2020-01-06 | 2020-01-06 | 36.543 | -15.616 | <0.1 |
| | 21:24:13 | 21:28:19 | | | |
| FRAM-CTA-N | 2020-01-06 | 2020-01-06 | 38.359 | -15.616 | <0.1 |
| | 21:28:34 | 21:32:40 | | | |
| FRAM-CTA-N | 2020-01-06 | 2020-01-06 | 39.156 | -17.251 | <0.1 |
| | 21:33:00 | 21:37:06 | | | |
| FRAM-CTA-N | 2020-01-06 | 2020-01-06 | 41.092 | -17.800 | <0.1 |
| | 21:37:24 | 21:41:30 | | | |
| FRAM-CTA-N | 2020-01-06 | 2020-01-06 | 36.681 | -16.377 | <0.1 |
| | 21:41:51 | 21:45:57 | | | |
| FRAM-CTA-N | 2020-01-06 | 2020-01-06 | 39.721 | -15.616 | <0.1 |
| | 21:46:13 | 21:50:19 | | | |
| FRAM-CTA-N | 2020-01-06 | 2020-01-06 | 40.404 | -15.616 | <0.1 |
| | 21:50:34 | 21:54:39 | | | |
| ----- | ----- | ----- | ----- | ----- | ----- |
| TCA | 2020-01-06 | 2020-01-08 | 47.402 | -16.679 | 0.3 |
| | 19:53:27 | 20:56:27 | | | |
| TCA | 2020-01-06 | 2020-01-08 | 43.531 | -16.679 | 0.4 |
| | 20:00:10 | 20:30:30 | | | |
| TCA | 2020-01-06 | 2020-01-08 | 37.724 | -16.679 | 0.3 |
| | 20:19:20 | 19:06:40 | | | |
| TCA | 2020-01-06 | 2020-01-08 | 45.466 | -16.679 | 0.3 |
| | 20:26:05 | 22:14:42 | | | |
| TCA | 2020-01-06 | 2020-01-08 | 35.602 | -14.823 | 0.3 |
| | 21:17:56 | 22:08:01 | | | |
| TCA | 2020-01-06 | 2020-01-08 | 39.660 | -16.679 | 0.4 |
| | 21:24:28 | 19:32:07 | | | |
| TCA | 2020-01-06 | 2020-01-08 | 41.595 | -16.679 | 0.4 |
| | 23:14:10 | 21:03:11 | | | |
| TCA | 2020-01-07 | 2020-01-08 | 47.907 | -18.535 | 0.3 |
| | 18:41:41 | 22:53:08 | | | |
| TCA | 2020-01-07 | 2020-01-08 | 51.273 | -16.679 | 0.3 |
| | 19:00:38 | 18:53:17 | | | |
| TCA | 2020-01-07 | 2020-01-08 | 42.037 | -18.535 | 0.3 |
| | 19:07:22 | 21:09:55 | | | |
| TCA | 2020-01-07 | 2020-01-08 | 45.950 | -18.535 | 0.3 |
| | 20:31:52 | 22:33:39 | | | |
| TCA | 2020-01-07 | 2020-01-08 | 51.004 | -14.823 | 0.3 |
| | 21:25:55 | 23:25:30 | | | |
| TCA | 2020-01-07 | 2020-01-08 | 52.929 | -14.823 | 0.3 |
| | 21:36:11 | 23:38:59 | | | |
| TCA | 2020-01-07 | 2020-01-08 | 53.208 | -16.679 | 0.3 |
| | 23:39:36 | 23:32:15 | | | |
| TCA | 2020-01-08 | 2020-01-08 | 49.337 | -16.679 | 0.3 |
| | 18:01:50 | 20:18:01 | | | |
| TCA | 2020-01-08 | 2020-01-08 | 35.789 | -16.679 | 0.3 |
| | 18:20:57 | 20:37:13 | | | |
| TCA | 2020-01-08 | 2020-01-08 | 39.453 | -14.823 | 0.3 |
| | 18:34:27 | 22:59:51 | | | |
| TCA | 2020-01-08 | 2020-01-08 | 37.528 | -14.823 | 0.3 |
| | 20:04:59 | 20:11:19 | | | |
| TCA | 2020-01-08 | 2020-01-08 | 33.677 | -14.823 | 0.3 |
| | 22:34:06 | 22:40:26 | | | |
| ----- | ----- | ----- | ----- | ----- | ----- |
| TCH | 2020-01-08 | 2020-01-09 | 40.950 | -18.141 | 0.3 |
| | 03:26:13 | 05:28:47 | | | |
| TCH | 2020-01-08 | 2020-01-09 | 48.569 | -18.141 | 0.3 |
| | 03:32:58 | 05:35:31 | | | |
| TCH | 2020-01-08 | 2020-01-09 | 50.474 | -18.141 | 0.3 |
| | 03:39:43 | 03:32:24 | | | |
| TCH | 2020-01-08 | 2020-01-09 | 39.045 | -18.141 | 0.3 |
| | 03:58:38 | 03:51:32 | | | |
| TCH | 2020-01-08 | 2020-01-09 | 52.379 | -18.141 | 0.3 |
| | 04:05:23 | 06:07:35 | | | |
| TCH | 2020-01-08 | 2020-01-08 | 42.634 | -16.323 | 0.4 |
| | 04:12:08 | 04:18:27 | | | |
| TCH | 2020-01-08 | 2020-01-09 | 38.845 | -16.323 | 0.4 |
| | 04:24:40 | 04:17:30 | | | |
| TCH | 2020-01-08 | 2020-01-09 | 46.424 | -16.323 | 0.3 |
| | 04:31:23 | 04:24:14 | | | |
| TCH | 2020-01-08 | 2020-01-08 | 44.529 | -16.323 | 0.3 |
| | 04:38:03 | 04:44:21 | | | |
| TCH | 2020-01-08 | 2020-01-09 | 44.760 | -18.141 | 0.3 |
| | 05:03:48 | 04:56:22 | | | |
| TCH | 2020-01-09 | 2020-01-09 | 50.213 | -16.323 | 0.3 |
| | 02:53:25 | 02:59:43 | | | |
| TCH | 2020-01-09 | 2020-01-09 | 46.664 | -18.141 | 0.3 |
| | 03:00:08 | 03:06:26 | | | |
| TCH | 2020-01-09 | 2020-01-09 | 32.825 | -14.505 | 0.3 |
| | 03:38:33 | 03:44:51 | | | |
| TCH | 2020-01-09 | 2020-01-09 | 40.739 | -16.323 | 0.4 |
| | 04:04:28 | 04:10:46 | | | |
| TCH | 2020-01-09 | 2020-01-09 | 36.950 | -16.323 | 0.3 |
| | 04:43:19 | 04:49:38 | | | |
| TCH | 2020-01-09 | 2020-01-09 | 35.055 | -16.323 | 0.3 |
| | 04:56:49 | 05:03:07 | | | |
| TCH | 2020-01-09 | 2020-01-09 | 42.855 | -18.141 | 0.3 |
| | 05:15:47 | 05:22:05 | | | |
| TCH | 2020-01-09 | 2020-01-09 | 55.897 | -16.323 | 0.3 |
| | 05:41:52 | 05:48:10 | | | |
+-------------+------------+------------+---------+---------+---------+
TStart and TEnd refers respectively to the time of the first and last
exposure for a given tile. Observations are not necessarily continuous
in this interval.
The Probability refers to the 2D spatial probability of the GW skymap
enclosed in a given tile.
These observations cover about 8.5% of the cumulative probability of
the BAYESTAR skymap created on 2020-01-05 16:25:11 (UTC).
The coverage map is available at:
https://grandma-
owncloud.lal.in2p3.fr/index.php/s/XgtMhPRxcyL09gR/download?
path=%2F&files=GRANDMA_S200105ae_1578579389.png
No significant transient candidates were found during our low latency
analysis [2,3].
GRANDMA (Global Rapid Advanced Network Devoted to the Multi-messenger
Addicts) is a network of robotic telescopes connected all over the
world with both photometry and spectrometry capabilities for Time-
domain Astronomy [2] (https://grandma.lal.in2p3.fr/).
Details on the different telescopes are available on the GRANDMA web
pages.
[1] M. W Coughlin et al., MNRAS 2019, https://doi.org/10.1093/mnras/stz2485
[2] S. Antier et al., MNRAS 2019, https://doi.org/10.1093/mnras/stz3142
[3] K. Noysena et al., ApJ 2019, arXiv:1910.02770
GCN Circular 26686
Subject
LIGO/Virgo S200105ae: Gaia Photometric Alerts transient candidate
Date
2020-01-09T14:36:23Z (6 years ago)
From
Deepak Eappachen at SRON Netherlands <d.eappachen@sron.nl>
Z. Kostrzewa-Rutkowska (Leiden Observatory), D. Eappachen (SRON/RU),
S. Hodgkin, A. Delgado, D.L. Harrison, M.van Leeuwen, G. Rixon,
A. Yoldas (IoA Cambridge), P.G. Jonker(SRON/RU) on behalf of Gaia Alerts team
report the discovery of a transient candidate within the probability skymap of
S200105ae(LIGO/VIRGO Collaboration GCN 26640):
---------------------------------------------------------------------------
Name TNSid Date [TCB] RaDeg DecDeg AlertMag URL
---------------------------------------------------------------------------
Gaia20add AT2020oo 2020-01-06T04:17:32 259.77575 25.45562 18.52
http://gsaweb.ast.cam.ac.uk/alerts/alert/Gaia20add/
---------------------------------------------------------------------------
Note: Gaia20add - candidate SN near galaxy SDSS J171905.38+252718.1
Acknowledgements: This work has made use of data from the European Space
Agency (ESA) mission Gaia (https://www.cosmos.esa.int/gaia), processed by
the Gaia Data Processing and Analysis Consortium (DPAC,
https://www.cosmos.esa.int/web/gaia/dpac/consortium). Funding for the DPAC
has been provided by national institutions, in particular the institutions
participating in the Gaia Multilateral Agreement. ZKR acknowledges funding
from the Netherlands Research School for Astronomy (NOVA). DE, and PGJ
acknowledge support from the European Research Council under ERC
Consolidator Grant agreement no 647208.
GCN Circular 26675
Subject
LIGO/Virgo S200105ae: GW data still under study
Date
2020-01-08T22:00:57Z (6 years ago)
From
Peter Shawhan at U of Maryland/LSC <pshawhan@umd.edu>
The LIGO Scientific Collaboration and the Virgo Collaboration report:
The LIGO/Virgo data from the time of the subthreshold GW compact
binary merger candidate S200105ae continues to be under study.
We still intend to provide an updated sky map and estimated
Probability of remnant mass around the final compact object,
but those parameter estimation studies are still in progress.
GCN Circular 26673
Subject
LIGO/Virgo S200105ae: Candidates from the Zwicky Transient Facility
Date
2020-01-08T19:46:30Z (6 years ago)
From
Robert Stein at DESY <robert.stein@desy.de>
R. Stein (DESY), S. Anand (Caltech), M. Coughlin (UMinn.), S. Reusch (DESY), E. Kool (OKC), I. Andreoni (Caltech), E. C. Bellm (U. Wash), M. M. Kasliwal (Caltech), A. Kong (NTHU), H. Kumar (IIT-B), K. Deshmukh (IIT-B), V. Bhalerao (IIT-B), S. B. Cenko (NASA GSFC), L. Singer (NASA GSFC), T. Ahumada (UMD), G.C. Anupama (IIT-B)
on behalf of the ZTF and GROWTH collaborations:
We continued observing the localization region of the gravitational wave trigger S200105ae (LVC, GCN #26640) with the Palomar 48-inch telescope equipped with the 47 square degree Zwicky Transient Facility camera (ZTF, Bellm et al. 2019, Graham et al. 2019).
The tiling was optimally determined and triggered using the GROWTH Target of Opportunity marshal (Coughlin et al. 2019a, Kasliwal et al. 2019b). Last night, we triggered target-of-opportunity observations in the g-band and r-band beginning at 2020-01-08 05:00 UT. With our triggered 180s observations, we covered 17.7% of the enclosed probability with a median depth of 20.2 mag.
Based on the total triggered and serendipituous coverage in the last three nights since merger time, we covered 51.7% of the enclosed probability with a median depth of 19.7 mag.
The images were processed in real-time through the ZTF reduction and image subtraction pipelines at IPAC to search for potential counterparts (Masci et al. 2019). Alert filtering and follow-up coordination was undertaken by the GROWTH Marshal system (Kasliwal et al. 2019). The ZTF alert stream was also queried using the Kowalski infrastructure (Duev et al., 2019) and with AMPEL (Nordin et al. 2019).
Here we report candidates falling within the 95% probability region and detections separated by 20 minutes.
��-------------��---------��------------��--------------��-------��-----��----------+
| Name | IAU Name | RA | Dec | filter | mag | MJD |
��-------------��---------��------------��--------------��-------��-----��----------+
| ZTF20aaervoa | AT2020pp | 15:02:38.38 | +16:28:21.5 | r | 20.08| 58856.565 |
| ZTF20aaertpj | AT2020pv | 14:27:52.03 | +33:34:09.7 | r | 19.55| 58856.574 |
| ZTF20aaervyn | AT2020pq | 15:01:27.45 | +20:37:23.5 | r | 20.49| 58856.565 |
| ZTF20aaerqbx | AT2020ps | 15:49:26.29 | +40:49:55.0 | r | 19.70| 58856.568 |
| ZTF20aaerxsd | AT2020py | 14:00:54.27 | +45:28:21.8 | r | 19.97| 58856.572 |
��-------------��---------��------------��--------------��-------��-----��----------+
ZTF20aaervoa/AT2020pp is interesting because it shows a very red color (g-r=0.66) and appears 2.9" offset from a host galaxy with a SDSS spectroscopic redshift of z=0.045, implying an absolute magnitude of -16.4 mag in r-band. It also has an upper limit of g>20.4, obtained three nights ago on MJD 58853.539. The host galaxy distance is within 1-sigma of the GW distance estimate.
ZTF20aaertpj/AT2020pv is interesting because of its red color (g-r=0.35) and its location in a galaxy with SDSS spectroscopic redshift of z=0.02875, resulting in an absolute magnitude of -15.9. It has an upper limit of g>20.8 three nights ago on MJD 58853.527. The host galaxy distance is within 2-sigma of the GW distance estimate.
ZTF20aaervyn/AT2020pq is located in a galaxy with an SDSS spectroscopic redshift of z=0.115. It is on the outer periphery of the BAYESTAR map but we include it as the final map is not yet available. The transient has a red color (g-r=0.3), and an upper limit of g>20.5 at MJD 58853.539.
ZTF20aaerqbx/AT2020ps is likely in a galaxy with SDSS photo-z of z~0.126 +/- 0.068. The transient has a blue color (g-r=-0.2), and an upper limit of g>20.4 at MJD 58853.536.
ZTF20aaerxsd/AT2020py is likely in a galaxy with SDSS photo-z of z~0.111 +/- 0.035. The transient has a red color (g-r=0.33), and an upper limit of r>20.6 at MJD 58853.554.
ZTF and GROWTH are worldwide collaborations comprising of Caltech, USA; IPAC, USA, WIS, Israel; OKC, Sweden; JSI/UMd, USA; U Washington, USA; DESY, Germany; MOST, Taiwan; UW Milwaukee, USA; LANL USA; Tokyo Tech, Japan; IITB, India; IIA, India; LJMU, UK; TTU, USA; SDSU, USA and USyd, Australia. ZTF acknowledges the generous support of the NSF under AST MSIP Grant No 1440341. GROWTH acknowledges generous support of the NSF under PIRE Grant No 1545949. Alert distribution service provided by DIRAC@UW (Patterson et al. 2019).
GCN Circular 26664
Subject
LIGO/Virgo S200105ae: Upper limits from CALET observations.
Date
2020-01-08T06:11:55Z (6 years ago)
From
Yuta Kawakubo at Louisiana State U./CALET <kawakubo1@lsu.edu>
K. Yamaoka (Nagoya U), A. Yoshida, T. Sakamoto, V. Pal'shin,
S. Sugita (AGU), Y. Kawakubo (LSU), S. Nakahira (RIKEN),
Y. Asaoka, S. Torii (Waseda U), Y. Shimizu,
T. Tamura (Kanagawa U), N. Cannady (GSFC/UMBC),
M. L. Cherry (LSU), S. Ricciarini (U of Florence),
P. S. Marrocchesi (U of Siena),
and the CALET collaboration:
The CALET Gamma-ray Burst Monitor (CGBM) was operating at the trigger
time of S200105ae T0 = 2020-01-05 16:24:26.057 UT (The LIGO Scientific
Collaboration and Virgo Collaboration, GCN Circ.26640).
No CGBM on-board trigger occurred around the event time. Based on the
LIGO-Virgo localization sky map, the summed LIGO probabilities inside
the CGBM HXM (7 - 3000 keV) and SGM (40 keV - 28 MeV) fields of view
are 71 % and 82 %, respectively (and 84 % credible region of the
initial sky map was above the horizon). The HXM and SGM fields of
view were centered at RA = 42.4 deg, Dec =-23.7 deg and RA = 50.5
deg, Dec = -30.6 deg at T0, respectively.
CGBM high voltages were turning on around T0-60 sec. Based on the
analysis of the light curve data with 0.125 sec time resolution from
T0-50 sec to T0+60 sec, we found no significant excess around the
trigger time in either the HXM or the SGM data.
The CALET Calorimeter (CAL) was operating in the high energy trigger
mode at the trigger time of S200105ae. Using the CAL data, we have
searched for gamma-ray events in the 10-100 GeV band from -60 sec to
+60 sec from the GW trigger time and found no candidates in the
overwrap region with the LIGO-Virgo high probability localization
region.
The 90% upper limit of CAL is 6.5x10^-6 erg/cm^2/s (10-100 GeV) when
the summed LIGO-Virgo probability reaches 60%.
The CAL FOV was centered at RA= 50.6 deg, DEC= -30.6 deg at T0.
GCN Circular 26662
Subject
LIGO/Virgo S200105ae: Upper Limits from the Zwicky Transient Facility
Date
2020-01-07T21:15:51Z (6 years ago)
From
Shreya Anand at GROWTH Caltech <sanand@caltech.edu>
S. Anand (Caltech), M. Coughlin (U Minn), L. Singer (NASA GSFC), D. Goldstein (Caltech), I. Andreoni (Caltech), M. M. Kasliwal (Caltech), E. Bellm (U Washington), T. Ahumada (UMD), S. B. Cenko (NASA GSFC), S. Nissanke (UVA), V. Bhalerao (GROWTH-India), E. Kool (OKC), R. Stein (DESY), S. Reusch (DESY) report on behalf of the GROWTH Collaboration:
We observed the localization region of the gravitational wave trigger S200105ae (LVC, GCN #26640) with the Palomar 48-inch telescope equipped with the 47 square degree Zwicky Transient Facility camera (ZTF, Bellm et al. 2019, Graham et al. 2019).
The tiling was optimally determined and triggered using the GROWTH Target of Opportunity marshal (Coughlin et al. 2019a, Kasliwal et al. 2019b). We started obtaining target-of-opportunity observations in the g-band and r-band beginning at 2020-01-07 01:54 UT. Combining triggered 180s and serendipitous 30s observations, we covered 45.1% of the enclosed probability with a median depth of 19.5 mag (due to poor seeing conditions and proximity to the moon).
The images were processed in real-time through the ZTF reduction and image subtraction pipelines at IPAC to search for potential counterparts (Masci et al. 2019). Alert filtering and follow-up coordination was undertaken by the GROWTH Marshal system (Kasliwal et al. 2019). The ZTF alert stream was also queried using the Kowalski infrastructure (Duev et al., 2019) and with AMPEL (Nordin et al. 2019).
No candidates of interest have been identified thus far. Additional analysis is in progress.
ZTF and GROWTH are worldwide collaborations comprising of Caltech, USA; IPAC, USA, WIS, Israel; OKC, Sweden; JSI/UMd, USA; U Washington, USA; DESY, Germany; MOST, Taiwan; UW Milwaukee, USA; LANL USA; Tokyo Tech, Japan; IITB, India; IIA, India; LJMU, UK; TTU, USA; SDSU, USA and USyd, Australia. ZTF acknowledges the generous support of the NSF under AST MSIP Grant No 1440341. GROWTH acknowledges generous support of the NSF under PIRE Grant No 1545949. Alert distribution service provided by DIRAC@UW (Patterson et al. 2019).
GCN Circular 26657
Subject
LIGO/Virgo S200105ae: Further study ongoing for GW compact binary merger candidate
Date
2020-01-07T19:24:07Z (6 years ago)
From
Peter Shawhan at U of Maryland/LSC <pshawhan@umd.edu>
The LIGO Scientific Collaboration and the Virgo Collaboration report:
Parameter estimation to determine the probability of a remnant is ongoing.
Preliminary human vetting of this candidate indicates a chirp structure in
the L1 time-frequency plane with no indication of contamination by
instrumental artifacts. We will send another Circular within 24 hours with
any updated information that is available.
GCN Circular 26652
Subject
LIGO/Virgo S200105ae: AstroSat CZTI upper limits
Date
2020-01-07T05:19:18Z (6 years ago)
From
Varun Bhalerao at Indian Inst of Tech <varunb@iitb.ac.in>
V. Shenoy (IITB), Aarthy E. (PRL), V. Bhalerao (IITB), D. Bhattacharya (IUCAA), A. R. Rao (TIFR), S. Vadawale (PRL) report on behalf of the AstroSat CZTI collaboration:
We have carried a search for X-ray candidates in Astrosat CZTI data in a 100 sec window around the trigger time of the subthreshold GW compact binary merger candidate S200105ae (UTC 2020-01-05 16:24:26.000, GraceDB event). CZTI is a coded aperture mask instrument that has considerable effective area for about 29% of the entire sky, but is also sensitive to brighter transients from the entire sky. At the time of merger, Astrosat's nominal pointing is RA,DEC = 22:07:55.2,31:23:52.1 (331.9800,31.3978), which is ~82 deg away from the maximum probability location, which severely reduces the effective area of CZTI. At the time of merger event, the Earth-satellite-transient angle corresponding to maximum probability location is ~109 deg and hence is not occulted by Earth in satellite's frame. In a time interval of 100 sec around the event, the region of the sky map (LVC GCN 26640) which is not occulted by Earth in the satellite's frame has a cumulative probability of 0.89 (89%).
CZTI data were de-trended to remove orbit-wise background variation. We then searched data from the four independent, identical quadrants to look for coincident spikes in the count rates. Searches were undertaken by binning the data in 0.1s, 1s, and 10s respectively. Statistical fluctuations in background count rates were estimated by using data from 10 (+-5) neighbouring orbits. We selected confidence levels such that the probability of a false trigger in a 1000 sec window is 10^-4. We do not find any evidence for any hard X-ray transient in this window, in the CZTI energy range of 20-200 keV.
We use a detailed mass model of the satellite to calculate the direction-dependent instrument response for points in the visible sky. We then assume the source is modelled as a power law with photon index alpha = -1, and convert our count rate upper limits to direction-dependent flux limits. We obtain the following upper limits for source flux in the 20-200 keV band by taking a probability weighted mean over the visible sky:
0.1 s: flux limit= 1.83e-05 ergs/cm^2/s; fluence limit = 1.83e-06 ergs/cm^2
1.0 s: flux limit= 5.59e-06 ergs/cm^2/s; fluence limit = 5.59e-06 ergs/cm^2
10.0 s: flux limit= 1.00e-06 ergs/cm^2/s; fluence limit = 1.00e-05 ergs/cm^2
CZTI is built by a TIFR-led consortium of institutes across India, including VSSC, ISAC, IUCAA, SAC and PRL. The Indian Space Research Organisation funded, managed and facilitated the project.
GCN Circular 26651
Subject
LIGO/Virgo S200105ae: Coverage and upper limits from MAXI/GSC observations
Date
2020-01-07T03:43:48Z (6 years ago)
From
Motoko Serino at RIKEN/MAXI <motoko@crab.riken.jp>
S. Sugita, M. Serino (AGU),
N. Kawai (Tokyo Tech), H. Negoro (Nihon U.),
M. Nakajima, W. Maruyama, M. Aoki, K. Kobayashi, R. Takagi (Nihon U.),
T. Mihara, C. Guo, Y. Zhou, T. Tamagawa, M. Matsuoka (RIKEN),
T. Sakamoto, H. Nishida, A. Yoshida (AGU),
Y. Tsuboi, W. Iwakiri, R. Sasaki, H. Kawai, T. Sato (Chuo U.),
M. Shidatsu (Ehime U.), M. Oeda, K. Shiraishi (Tokyo Tech),
S. Nakahira, Y. Sugawara, S. Ueno, H. Tomida, M. Ishikawa, R. Shimomukai, M. Tominaga (JAXA),
Y. Ueda, A. Tanimoto, S. Yamada, S. Ogawa, K. Setoguchi, T. Yoshitake (Kyoto U.),
H. Tsunemi, T. Yoneyama, K. Asakura, S. Ide (Osaka U.),
M. Yamauchi, S. Iwahori, Y. Kurihara, K. Kurogi, K. Miike (Miyazaki U.),
T. Kawamuro (NAOJ), K. Yamaoka (Nagoya U.), Y. Kawakubo (LSU), M. Sugizaki (NAOC)
report on behalf of the MAXI team:
We examined MAXI/GSC all-sky X-ray images (2-20 keV)
after the LVC trigger S200105ae at 2020-01-05 16:24:26.057 UTC (GCN 26640).
At the trigger time of S200105ae, the high-voltage of MAXI/GSC was off,
and it was turned on at T0+93 sec (+1.6 min).
The first one-orbit (92 min) scan observation with GSC after the event covered 82%
of the 90% credible region of the bayestar skymap from 16:25:59 to 17:32:25 UTC (T0+93 to T0+4079 sec).
No significant new source was found in the region in the one-orbit scan observation.
A typical 1-sigma averaged upper limit obtained in one scan observation
is 20 mCrab at 2-20 keV.
If you require information about X-ray flux by MAXI/GSC at specific coordinates,
please contact the submitter of this circular by email.
GCN Circular 26650
Subject
LIGO/Virgo S200105ae: No counterpart candidates in HAWC observations
Date
2020-01-07T01:33:33Z (6 years ago)
From
Israel Martinez-Castellanos at UMD/HAWC <imc@umd.edu>
The HAWC Collaboration (https://www.hawc-observatory.org) reports:
The HAWC Collaboration performed a follow-up of the gravitational wave
trigger S200105ae (GCN #26640). At the time of the trigger the HAWC
local zenith was oriented towards (RA, Dec) = (253.3 deg, 19.0 deg).
14% of the GW candidate sky location probability fell within our
observable field of view (0-45 deg zenith angle).
We performed a search for a short timescale emission using 6 sliding
time windows (dt = 0.3s, 1s, 3s, 10s, 30s and 100s), shifted forward
in time by 20% of their width. We searched the 95% probability
containment area in a timescale-dependent time period, from t0-5dt to
t0+10dt, where t0 is the time of the GW trigger.
No significant gamma-ray detection above the background was observed.
The sensitivity of this analysis is greatly dependent on zenith angle,
ranging from 0 deg to 45 deg for the area searched in this
analysis. The 5sigma detection sensitivity to a 1s (100s) burst in the
80-800GeV energy range goes from 1.2e-6 erg/cm^2 to 1.1e-4 erg/cm^2
(6.4e-6 erg/cm^2 to 5.0e-4 erg/cm^2), depending on the zenith
angle.
HAWC is a TeV gamma ray water Cherenkov array located in the state of
Puebla, Mexico. It is sensitive to the energy range ~0.1-100TeV, and
monitors 2/3 of the sky every day with an instantaneous field-of-view
of ~2 sr.
GCN Circular 26649
Subject
LIGO/Virgo S200105ae: no counterpart candidates in the Swift/BAT observations
Date
2020-01-06T23:41:41Z (6 years ago)
From
Amy Lien at GSFC <amy.y.lien@nasa.gov>
S. D. Barthelmy (NASA/GSFC), A. Y. Lien (GSFC/UMBC),
D. M. Palmer (LANL), T. Sakamoto (AGU),
A. P. Beardmore (U. Leicester), M. G. Bernardini (INAF-OAB),
A. A. Breeveld (MSSL-UCL), D. N. Burrows (PSU),
S. Campana (INAF-OAB), S. B. Cenko (NASA/GSFC),
G. Cusumano (INAF-IASF PA), A. D'Ai (INAF-IASFPA),
P. D'Avanzo (INAF-OAB), V. D'Elia (ASI-ASDC), S. Emery (UCL-MSSL),
P. A. Evans (U. Leicester), P. Giommi (ASI), C. Gronwall (PSU),
D. Hartmann (Clemson U.), J. A. Kennea (PSU),
N. Klingler (PSU), H. A. Krimm (NSF),
N. P. M. Kuin (UCL-MSSL), F. E. Marshall (NASA/GSFC),
A. Melandri (INAF-OAB), J. A. Nousek (PSU),
S. R. Oates (U. of Birmingham), P. T. O'Brien (U. Leicester),
J. P. Osborne (U. Leicester), C. Pagani (U. Leicester),
K. L. Page (U.Leicester), M. J. Page (UCL-MSSL), M. Perri (ASDC),
J. L. Racusin (NASA/GSFC), B. Sbarufatti (INAF-OAB/PSU),
M. H. Siegel (PSU), G. Tagliaferri (INAF-OAB), A. Tohuvavohu (U. Toronto),
E. Troja (NASA/GSFC/UMCP) report on behalf of the Swift team:
We report the search results in the BAT data within T0 +/- 100 s of the
LVC event S200105ae (LIGO/VIRGO Collaboration GCN Circ. 26557),
where T0 is the LVC trigger time (2020-01-05T16:24:53.057 UTC).
The center of the BAT field of view (FOV) at T0 is
RA = 206.337 deg,
DEC = 41.706 deg,
and the roll angle is 103.682 deg.
The BAT FOV (>10% partial coding) covers 10.35% of the integrated
LVC localization probability. Note that the sensitivity in the BAT FOV
changes with the partial coding fraction. Please see the BAT FOV figure
in the summary page (link below) for the specific location of the LVC
region relative to the BAT FOV.
Within T0 +/- 100 s, no significant astrophysical detections
(signal-to-noise ratio >~ 5 sigma) are found in the BAT raw light
curves with time bins of 64 ms, 1 s, and 1.6 s. The pulse
and the dip seen at ~T0+50 s is due to onboard calibration process
during spacecraft slews.
Assuming an on-axis (100% coded) short GRB with a typical
spectrum in the BAT energy range (i.e., a simple power-law model with a
power-law index of -1.32, Lien & Sakamoto et al. 2016), the 5-sigma upper
limit in the 1-s binned light curve corresponds to a flux upper
limit (15-350 keV) of ~ 1.60 x 10^-7 erg/s/cm^2.
Assuming a luminosity of ~ 2 x 10^47 erg/s (similar to GW170817)
and an average Epeak of ~ 400 keV for short GRBs (Bhat et al. 2016),
this flux upper limit corresponds to a distance of ~ 56.80 Mpc.
No event data are available within T0 +/- 100 s.
BAT retains decreased, but significant, sensitivity to rate increases for
gamma-ray events outside of its FOV. About 7.88% of the integrated LVC
localization probability was outside of the BAT FOV but above the
Earth's limb from Swift's location, and the corresponding flux upper limits
for this region are within roughly an order of magnitude higher than those
within the FOV.
The results of the BAT analysis are available at
https://swift.gsfc.nasa.gov/results/BATbursts/team_web/S200105ae/web/source_public.html
GCN Circular 26648
Subject
LIGO/Virgo S200105ae: Upper limits from IceCube neutrino searches
Date
2020-01-06T22:28:10Z (6 years ago)
From
Raamis Hussain at IceCube <raamis.hussain@icecube.wisc.edu>
IceCube Collaboration (http://icecube.wisc.edu/) reports:
Searches [1,2] for track-like muon neutrino events detected by IceCube
consistent with the sky localization of gravitational-wave candidate
S200105ae
in a time range of 1000 seconds [3] centered on the alert event time
(2020-01-05 16:16:06.057 UTC to 2020-01-05 16:32:46.057 UTC) have been
performed.
During this time period IceCube was collecting good quality data.
No significant track-like events are found in spatial coincidence of
S200105ae calculated from the map circulated in the 2-Initial notice.
IceCube's sensitivity assuming an E^-2 spectrum (E^2 dN/dE) to neutrino
point sources within the locations spanned by the 90% spatial containment
of S200105ae ranges from 0.029 to 0.930 GeV cm^-2 in a 1000 second
time window.
The IceCube Neutrino Observatory is a cubic-kilometer neutrino detector
operating at the geographic South Pole, Antarctica. The IceCube realtime
alert point of contact can be reached at roc@icecube.wisc.edu
[1] Bartos et al. arXiv:1810.11467 (2018) and Countryman et
al.arXiv:1901.05486 (2019)
[2] PoS(ICRC2019)918 and Braun et al., Astroparticle Physics 29, 299 (2008)
[3] Baret et al., Astroparticle Physics 35, 1 (2011)
GCN Circular 26647
Subject
LIGO/Virgo S200105ae: not observable by AGILE-MCAL
Date
2020-01-06T21:07:31Z (6 years ago)
From
Fabrizio Lucarelli at SSDC/INAF-OAR <fabrizio.lucarelli@ssdc.asi.it>
F.Lucarelli (SSDC, and INAF/OAR), G. Piano (INAF/IAPS), M. Tavani (INAF/IAPS,
and Univ. Roma Tor Vergata), C.Casentini, M.Cardillo, A.Ursi (INAF/IAPS), C.
Pittori, F. Verrecchia (SSDC, and INAF/OAR), A. Bulgarelli, V. Fioretti, N.
Parmiggiani (INAF/OAS-Bologna), M. Pilia (INAF/OA-Cagliari), F. Longo (Univ.
Trieste, and INFN Trieste) report on behalf of the AGILE Team:
In response to the LIGO/Virgo GW event S200105ae at T0 = 2020-01-05
16:24:26.057 (UT), a preliminary analysis of the AGILE minicalorimeter (MCAL)
triggered data found no data acquisitions, due the satellite passage in the
South Atlantic Anomaly (SAA) region.
The AGILE-MCAL detector is a CsI detector with a 4 pi FoV, sensitive in the
energy range 0.4 - 100 MeV. Additional analysis of AGILE data is in progress.
GCN Circular 26646
Subject
LIGO/Virgo S200105ae: Global MASTER-Net observations report
Date
2020-01-06T20:42:19Z (6 years ago)
From
Vladimir Lipunov at Moscow State U/Krylov Obs <lipunov@xray.sai.msu.ru>
V. Lipunov, E. Gorbovskoy, V.Kornilov, N.Tyurina, P.Balanutsa, A.Kuznetsov, F.Balakin,
V.Vladimirov, D. Vlasenko, I.Gorbunov, D.Zimnukhov, V.Senik, T.Pogrosheva,
D.Kuvshinov, D. Cheryasov
(Lomonosov Moscow State University, SAI, Physics Department),
R. Podesta, C.Lopez, F. Podesta, C.Francile
(Observatorio Astronomico Felix Aguilar OAFA),
H.Levato
(Instituto de Ciencias Astronomicas, de la Tierra y del Espacio ICATE),
R. Rebolo, M. Serra
(The Instituto de Astrofisica de Canarias),
D. Buckley
(South African Astronomical Observatory),
O.A. Gres, N.M. Budnev, O.Ershova
(Irkutsk State University, API),
A. Tlatov, D. Dormidontov
(Kislovodsk Solar Station of the Pulkovo Observatory),
V. Yurkov, A. Gabovich, Yu. Sergienko
(Blagoveschensk Educational State University)
MASTER-SAAO robotic telescope (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L) located in South Africa (South African Astronomical Observatory) started inspect of the LIGO/Virgo S200105ae errorbox 11666 sec after trigger time at 2020-01-05 19:38:52 UT, with upper limit up to 17.8 mag. The observations began at zenith distance = 23 deg. The sun altitude is -19.7 deg.
MASTER-Amur robotic telescope located in Russia (Blagoveshchensk State Pedagogical University) started inspect of the LIGO/Virgo S200105ae errorbox 11794 sec after trigger time at 2020-01-05 19:41:00 UT, with upper limit up to 17.9 mag. The observations began at zenith distance = 47 deg. The sun altitude is -35.5 deg.
MASTER-Tunka robotic telescope located in Russia (Applied Physics Institute, Irkutsk State University) started inspect of the LIGO/Virgo S200105ae errorbox 14648 sec after trigger time at 2020-01-05 20:28:34 UT, with upper limit up to 19.8 mag. The observations began at zenith distance = 22 deg. The sun altitude is -42.8 deg.
MASTER-IAC robotic telescope located in Spain (IAC Teide Observatory) started inspect of the LIGO/Virgo S200105ae errorbox 16923 sec after trigger time at 2020-01-05 21:06:29 UT, with upper limit up to 19.6 mag. The observations began at zenith distance = 63 deg. The sun altitude is -35.7 deg.
MASTER-Kislovodsk robotic telescope located in Russia (Lomonosov MSU, Kislovodsk Solar Station of Pulkovo observatory) started inspect of the LIGO/Virgo S200105ae errorbox 30457 sec after trigger time at 2020-01-06 00:52:03 UT, with upper limit up to 20.4 mag. The observations began at zenith distance = 23 deg. The sun altitude is -41.3 deg.
The galactic latitude b = -61 deg., longitude l = 198 deg.
Real time updated cover map and OT discovered available here:
https://master.sai.msu.ru/site/master2/ligo_1.php?id=11173
We obtain a following upper limits.
Tmid-T0 | Date Time | Site | Coord (J2000) |Filt.| Expt. | Limit| Comment
_________|_____________________|_____________________|____________________________________|_____|_______|_______|________
11697 | 2020-01-05 19:38:52 | MASTER-SAAO | (04h 16m 28.94s , -54d 51m 36.7s) | C | 60 | 15.2 |
11789 | 2020-01-05 19:40:24 | MASTER-SAAO | (04h 16m 32.72s , -54d 50m 13.2s) | V | 60 | 12.4 |
11884 | 2020-01-05 19:41:00 | MASTER-Amur | (15h 51m 55.39s , +44d 05m 47.6s) | C | 180 | 17.3 |
12310 | 2020-01-05 19:48:05 | MASTER-Amur | (17h 14m 13.40s , +52d 03m 35.9s) | C | 180 | 17.3 |
12521 | 2020-01-05 19:51:37 | MASTER-Amur | (18h 07m 23.59s , +64d 01m 38.3s) | C | 180 | 17.9 |
12686 | 2020-01-05 19:55:22 | MASTER-SAAO | (04h 16m 33.81s , -54d 51m 02.2s) | C | 60 | 15.5 |
12778 | 2020-01-05 19:56:54 | MASTER-SAAO | (04h 16m 26.77s , -54d 52m 08.5s) | V | 60 | 16.0 |
13449 | 2020-01-05 20:08:04 | MASTER-Amur | (13h 28m 54.89s , +58d 07m 56.7s) | C | 60 | 17.1 |
13540 | 2020-01-05 20:09:35 | MASTER-Amur | (13h 28m 57.72s , +58d 09m 28.2s) | C | 60 | 17.1 |
13630 | 2020-01-05 20:11:05 | MASTER-Amur | (13h 43m 58.97s , +58d 08m 24.5s) | C | 60 | 16.9 |
13722 | 2020-01-05 20:12:37 | MASTER-Amur | (13h 28m 51.80s , +58d 09m 31.2s) | C | 60 | 17.2 |
13812 | 2020-01-05 20:14:08 | MASTER-Amur | (13h 44m 03.79s , +58d 08m 25.1s) | C | 60 | 17.0 |
13902 | 2020-01-05 20:15:38 | MASTER-Amur | (13h 43m 52.78s , +56d 07m 26.3s) | C | 60 | 17.1 |
13993 | 2020-01-05 20:17:08 | MASTER-Amur | (13h 43m 49.86s , +56d 09m 18.5s) | C | 60 | 17.1 |
14087 | 2020-01-05 20:18:42 | MASTER-Amur | (13h 58m 09.81s , +56d 07m 31.6s) | C | 60 | 17.1 |
14178 | 2020-01-05 20:20:14 | MASTER-Amur | (13h 43m 52.63s , +56d 09m 02.4s) | C | 60 | 17.1 |
14269 | 2020-01-05 20:21:45 | MASTER-Amur | (13h 58m 05.71s , +56d 08m 21.0s) | C | 60 | 16.9 |
14423 | 2020-01-05 20:23:18 | MASTER-Amur | (15h 51m 51.84s , +44d 06m 58.5s) | C | 180 | 17.1 |
14635 | 2020-01-05 20:26:50 | MASTER-Amur | (16h 03m 03.85s , +44d 05m 49.7s) | C | 180 | 16.9 |
14739 | 2020-01-05 20:28:34 | MASTER-Tunka | (12h 46m 42.62s , +52d 27m 31.5s) | C | 180 | 19.6 |
14847 | 2020-01-05 20:30:23 | MASTER-Amur | (17h 14m 09.17s , +52d 03m 19.8s) | C | 180 | 16.7 |
15057 | 2020-01-05 20:33:53 | MASTER-Amur | (17h 27m 14.97s , +52d 03m 16.5s) | C | 180 | 16.9 |
15269 | 2020-01-05 20:37:24 | MASTER-Amur | (18h 07m 24.08s , +64d 03m 53.8s) | C | 180 | 17.4 |
15366 | 2020-01-05 20:39:02 | MASTER-Tunka | (13h 39m 03.58s , +52d 25m 36.4s) | C | 180 | 19.4 |
15602 | 2020-01-05 20:42:58 | MASTER-Tunka | (14h 18m 37.33s , +51d 55m 18.4s) | C | 180 | 19.4 |
15807 | 2020-01-05 20:46:22 | MASTER-Tunka | (14h 18m 42.53s , +51d 54m 24.0s) | C | 180 | 19.4 |
16063 | 2020-01-05 20:51:39 | MASTER-Amur | (15h 45m 22.45s , +12d 07m 25.3s) | C | 60 | 15.6 |
16158 | 2020-01-05 20:53:14 | MASTER-Amur | (13h 28m 49.41s , +58d 07m 22.7s) | C | 60 | 16.8 |
16249 | 2020-01-05 20:54:44 | MASTER-Amur | (13h 28m 56.20s , +58d 07m 38.1s) | C | 60 | 17.0 |
16340 | 2020-01-05 20:56:16 | MASTER-Amur | (13h 28m 52.14s , +58d 09m 04.6s) | C | 60 | 17.0 |
16431 | 2020-01-05 20:57:47 | MASTER-Amur | (13h 43m 59.48s , +58d 07m 41.8s) | C | 60 | 16.8 |
16522 | 2020-01-05 20:59:18 | MASTER-Amur | (13h 44m 02.27s , +58d 08m 58.1s) | C | 60 | 16.9 |
16613 | 2020-01-05 21:00:48 | MASTER-Amur | (13h 43m 55.98s , +58d 08m 25.1s) | C | 60 | 16.9 |
16709 | 2020-01-05 21:02:25 | MASTER-Amur | (13h 43m 44.31s , +56d 09m 29.4s) | C | 60 | 17.2 |
16799 | 2020-01-05 21:03:54 | MASTER-Amur | (13h 43m 49.95s , +56d 08m 28.3s) | C | 60 | 16.9 |
16889 | 2020-01-05 21:05:25 | MASTER-Amur | (13h 43m 44.05s , +56d 07m 29.2s) | C | 60 | 17.0 |
16953 | 2020-01-05 21:06:29 | MASTER-IAC | (03h 45m 41.44s , -34d 00m 04.4s) | C | 60 | 17.8 |
17013 | 2020-01-05 21:06:29 | MASTER-IAC | (03h 45m 41.44s , -34d 00m 04.4s) | C | 180 | 18.5 | Coadd
16954 | 2020-01-05 21:06:29 | MASTER-IAC | (03h 55m 27.06s , -34d 03m 29.9s) | C | 60 | 18.1 |
17014 | 2020-01-05 21:06:29 | MASTER-IAC | (03h 55m 27.06s , -34d 03m 30.0s) | C | 180 | 18.9 | Coadd
16980 | 2020-01-05 21:06:55 | MASTER-Amur | (13h 58m 11.00s , +56d 07m 54.2s) | C | 60 | 16.9 |
17069 | 2020-01-05 21:08:25 | MASTER-Amur | (13h 58m 06.97s , +56d 09m 22.5s) | C | 60 | 16.9 |
17091 | 2020-01-05 21:08:46 | MASTER-IAC | (03h 55m 30.69s , -34d 02m 11.8s) | C | 60 | 18.1 |
17091 | 2020-01-05 21:08:46 | MASTER-IAC | (03h 45m 45.15s , -33d 58m 44.2s) | C | 60 | 17.8 |
17159 | 2020-01-05 21:09:55 | MASTER-Amur | (13h 58m 06.80s , +56d 07m 48.2s) | C | 60 | 16.9 |
17222 | 2020-01-05 21:10:58 | MASTER-IAC | (03h 45m 39.35s , -33d 59m 36.4s) | C | 60 | 17.8 |
17222 | 2020-01-05 21:10:58 | MASTER-IAC | (03h 55m 25.06s , -34d 03m 05.5s) | C | 60 | 18.1 |
17312 | 2020-01-05 21:11:28 | MASTER-Amur | (16h 03m 06.44s , +44d 07m 21.7s) | C | 180 | 17.0 |
17357 | 2020-01-05 21:13:12 | MASTER-IAC | (04h 14m 43.45s , -34d 01m 33.5s) | C | 60 | 18.3 |
17417 | 2020-01-05 21:13:12 | MASTER-IAC | (04h 14m 43.45s , -34d 01m 33.6s) | C | 180 | 19.0 | Coadd
17357 | 2020-01-05 21:13:13 | MASTER-IAC | (04h 04m 57.99s , -33d 58m 04.3s) | C | 60 | 17.6 |
17417 | 2020-01-05 21:13:13 | MASTER-IAC | (04h 04m 57.99s , -33d 58m 04.3s) | C | 180 | 18.1 | Coadd
17526 | 2020-01-05 21:15:01 | MASTER-Amur | (17h 27m 11.42s , +52d 05m 04.2s) | C | 180 | 16.9 |
17486 | 2020-01-05 21:15:21 | MASTER-IAC | (04h 14m 48.23s , -34d 02m 34.8s) | C | 60 | 18.3 |
17486 | 2020-01-05 21:15:21 | MASTER-IAC | (04h 05m 02.68s , -33d 59m 05.1s) | C | 60 | 17.5 |
17623 | 2020-01-05 21:17:39 | MASTER-IAC | (04h 14m 42.68s , -34d 03m 36.3s) | C | 60 | 18.3 |
17624 | 2020-01-05 21:17:39 | MASTER-IAC | (04h 04m 56.96s , -34d 00m 06.0s) | C | 60 | 17.4 |
17680 | 2020-01-05 21:18:36 | MASTER-Amur | (15h 45m 18.63s , +12d 08m 49.5s) | C | 60 | 15.8 |
17765 | 2020-01-05 21:20:00 | MASTER-IAC | (03h 59m 30.30s , -32d 00m 10.5s) | C | 60 | 17.9 |
17825 | 2020-01-05 21:20:00 | MASTER-IAC | (03h 59m 30.30s , -32d 00m 10.5s) | C | 180 | 18.6 | Coadd
17765 | 2020-01-05 21:20:00 | MASTER-IAC | (04h 09m 03.06s , -32d 03m 42.5s) | C | 60 | 18.3 |
17825 | 2020-01-05 21:20:00 | MASTER-IAC | (04h 09m 03.06s , -32d 03m 42.5s) | C | 180 | 19.1 | Coadd
17774 | 2020-01-05 21:20:10 | MASTER-Amur | (15h 53m 34.61s , +12d 07m 39.0s) | C | 60 | 15.8 |
17895 | 2020-01-05 21:22:11 | MASTER-IAC | (03h 59m 28.17s , -31d 58m 33.7s) | C | 60 | 17.9 |
17895 | 2020-01-05 21:22:11 | MASTER-IAC | (04h 09m 00.75s , -32d 02m 05.7s) | C | 60 | 18.3 |
18028 | 2020-01-05 21:24:23 | MASTER-IAC | (03h 59m 28.08s , -32d 00m 15.1s) | C | 60 | 17.8 |
18028 | 2020-01-05 21:24:23 | MASTER-IAC | (04h 09m 00.92s , -32d 03m 47.3s) | C | 60 | 18.3 |
18082 | 2020-01-05 21:25:18 | MASTER-Amur | (15h 45m 24.85s , +12d 07m 00.2s) | C | 60 | 15.6 |
18162 | 2020-01-05 21:26:37 | MASTER-IAC | (03h 45m 22.04s , -30d 02m 41.1s) | C | 60 | 18.7 |
18222 | 2020-01-05 21:26:37 | MASTER-IAC | (03h 45m 22.04s , -30d 02m 41.2s) | C | 180 | 19.1 | Coadd
18162 | 2020-01-05 21:26:37 | MASTER-IAC | (03h 36m 01.05s , -29d 59m 08.1s) | C | 60 | 17.9 |
18222 | 2020-01-05 21:26:37 | MASTER-IAC | (03h 36m 01.05s , -29d 59m 08.1s) | C | 180 | 18.6 | Coadd
18172 | 2020-01-05 21:26:48 | MASTER-Amur | (15h 53m 32.83s , +12d 08m 33.3s) | C | 60 | 15.6 |
18296 | 2020-01-05 21:28:52 | MASTER-IAC | (03h 45m 15.26s , -30d 03m 31.3s) | C | 60 | 18.7 |
18296 | 2020-01-05 21:28:52 | MASTER-IAC | (03h 35m 54.10s , -29d 59m 58.2s) | C | 60 | 18.0 |
18429 | 2020-01-05 21:31:04 | MASTER-IAC | (03h 45m 17.10s , -30d 02m 31.6s) | C | 60 | 18.6 |
18429 | 2020-01-05 21:31:04 | MASTER-IAC | (03h 35m 55.97s , -29d 58m 58.8s) | C | 60 | 18.0 |
18498 | 2020-01-05 21:32:13 | MASTER-Amur | (15h 53m 36.15s , +12d 08m 34.0s) | C | 60 | 15.6 |
18723 | 2020-01-05 21:34:59 | MASTER-Tunka | (12h 55m 23.79s , +41d 59m 24.3s) | C | 180 | 19.3 |
18816 | 2020-01-05 21:37:31 | MASTER-Amur | (16h 22m 16.99s , +08d 07m 41.3s) | C | 60 | 15.1 |
18928 | 2020-01-05 21:38:23 | MASTER-Tunka | (12h 55m 23.55s , +42d 00m 28.1s) | C | 180 | 19.4 |
18908 | 2020-01-05 21:39:04 | MASTER-Amur | (16h 42m 31.24s , +14d 06m 24.2s) | C | 60 | 15.3 |
19000 | 2020-01-05 21:40:35 | MASTER-Amur | (16h 34m 24.60s , +12d 06m 44.9s) | C | 60 | 15.2 |
19134 | 2020-01-05 21:41:50 | MASTER-Tunka | (13h 06m 18.58s , +41d 59m 14.4s) | C | 180 | 19.2 |
19094 | 2020-01-05 21:42:10 | MASTER-Amur | (13h 43m 56.98s , +58d 09m 12.8s) | C | 60 | 16.7 |
19185 | 2020-01-05 21:43:41 | MASTER-Amur | (13h 43m 51.11s , +58d 08m 40.4s) | C | 60 | 16.8 |
19276 | 2020-01-05 21:45:12 | MASTER-Amur | (13h 43m 51.67s , +58d 09m 41.8s) | C | 60 | 16.8 |
19339 | 2020-01-05 21:45:15 | MASTER-Tunka | (13h 06m 11.88s , +41d 58m 17.6s) | C | 180 | 19.3 |
19370 | 2020-01-05 21:46:45 | MASTER-Amur | (16h 22m 17.59s , +08d 07m 45.1s) | C | 60 | 15.2 |
19462 | 2020-01-05 21:48:17 | MASTER-Amur | (16h 30m 15.36s , +08d 06m 34.8s) | C | 60 | 15.1 |
19544 | 2020-01-05 21:48:39 | MASTER-Tunka | (13h 06m 16.54s , +41d 58m 25.8s) | C | 180 | 19.2 |
19554 | 2020-01-05 21:49:50 | MASTER-Amur | (16h 42m 32.54s , +14d 06m 40.8s) | C | 60 | 15.4 |
19652 | 2020-01-05 21:51:27 | MASTER-Amur | (13h 58m 03.21s , +56d 09m 12.2s) | C | 60 | 16.9 |
19741 | 2020-01-05 21:52:57 | MASTER-Amur | (13h 58m 03.19s , +56d 07m 57.5s) | C | 60 | 16.8 |
19809 | 2020-01-05 21:54:04 | MASTER-IAC | (03h 45m 38.43s , -34d 00m 49.1s) | C | 60 | 17.9 |
19869 | 2020-01-05 21:54:04 | MASTER-IAC | (03h 45m 38.44s , -34d 00m 49.1s) | C | 180 | 18.5 | Coadd
19809 | 2020-01-05 21:54:04 | MASTER-IAC | (03h 55m 24.79s , -34d 04m 12.4s) | C | 60 | 18.2 |
19869 | 2020-01-05 21:54:04 | MASTER-IAC | (03h 55m 24.79s , -34d 04m 12.4s) | C | 180 | 19.0 | Coadd
19831 | 2020-01-05 21:54:27 | MASTER-Amur | (13h 58m 06.02s , +56d 09m 41.9s) | C | 60 | 16.8 |
19952 | 2020-01-05 21:55:27 | MASTER-Tunka | (13h 00m 12.26s , +52d 00m 36.5s) | C | 180 | 19.6 |
19927 | 2020-01-05 21:56:03 | MASTER-Amur | (16h 50m 39.67s , +14d 07m 19.6s) | C | 60 | 15.4 |
19944 | 2020-01-05 21:56:19 | MASTER-IAC | (03h 55m 30.64s , -34d 04m 15.0s) | C | 60 | 18.2 |
19944 | 2020-01-05 21:56:20 | MASTER-IAC | (03h 45m 44.32s , -34d 00m 50.1s) | C | 60 | 17.9 |
20019 | 2020-01-05 21:57:35 | MASTER-Amur | (16h 34m 23.37s , +12d 08m 39.3s) | C | 60 | 15.4 |
20078 | 2020-01-05 21:58:33 | MASTER-IAC | (03h 55m 28.21s , -34d 02m 29.5s) | C | 60 | 18.1 |
20078 | 2020-01-05 21:58:33 | MASTER-IAC | (03h 45m 42.14s , -33d 59m 03.6s) | C | 60 | 17.9 |
20163 | 2020-01-05 21:58:59 | MASTER-Tunka | (13h 13m 15.08s , +51d 58m 45.8s) | C | 180 | 19.6 |
20110 | 2020-01-05 21:59:05 | MASTER-Amur | (16h 42m 38.12s , +12d 07m 29.7s) | C | 60 | 15.4 |
20211 | 2020-01-05 22:00:46 | MASTER-IAC | (04h 14m 46.76s , -34d 03m 38.0s) | C | 60 | 18.3 |
20271 | 2020-01-05 22:00:46 | MASTER-IAC | (04h 14m 46.76s , -34d 03m 38.0s) | C | 180 | 19.0 | Coadd
20212 | 2020-01-05 22:00:47 | MASTER-IAC | (04h 05m 00.60s , -34d 00m 12.0s) | C | 60 | 17.6 |
20272 | 2020-01-05 22:00:47 | MASTER-IAC | (04h 05m 00.60s , -34d 00m 12.0s) | C | 180 | 18.4 | Coadd
20382 | 2020-01-05 22:02:38 | MASTER-Tunka | (13h 43m 33.96s , +43d 59m 14.4s) | C | 180 | 19.5 |
20348 | 2020-01-05 22:03:03 | MASTER-IAC | (04h 05m 03.53s , -33d 58m 27.2s) | C | 60 | 17.7 |
20349 | 2020-01-05 22:03:04 | MASTER-IAC | (04h 14m 49.52s , -34d 01m 54.4s) | C | 60 | 18.4 |
20359 | 2020-01-05 22:03:14 | MASTER-Amur | (16h 22m 16.09s , +08d 07m 48.4s) | C | 60 | 15.3 |
20448 | 2020-01-05 22:04:44 | MASTER-Amur | (16h 30m 16.88s , +08d 09m 04.1s) | C | 60 | 15.3 |
20481 | 2020-01-05 22:05:16 | MASTER-IAC | (04h 14m 43.30s , -34d 02m 50.6s) | C | 60 | 18.4 |
20481 | 2020-01-05 22:05:16 | MASTER-IAC | (04h 04m 57.13s , -33d 59m 22.3s) | C | 60 | 17.7 |
20597 | 2020-01-05 22:06:12 | MASTER-Tunka | (13h 54m 38.63s , +43d 58m 18.7s) | C | 180 | 19.6 |
20541 | 2020-01-05 22:06:16 | MASTER-Amur | (16h 42m 27.28s , +14d 07m 09.2s) | C | 60 | 15.5 |
20624 | 2020-01-05 22:07:39 | MASTER-IAC | (04h 08m 58.33s , -32d 02m 02.0s) | C | 60 | 18.5 |
20684 | 2020-01-05 22:07:39 | MASTER-IAC | (04h 08m 58.33s , -32d 02m 02.0s) | C | 180 | 19.1 | Coadd
20624 | 2020-01-05 22:07:39 | MASTER-IAC | (03h 59m 25.27s , -31d 58m 33.4s) | C | 60 | 18.1 |
20684 | 2020-01-05 22:07:39 | MASTER-IAC | (03h 59m 25.27s , -31d 58m 33.4s) | C | 180 | 18.8 | Coadd
20633 | 2020-01-05 22:07:49 | MASTER-Amur | (16h 50m 45.32s , +14d 08m 29.5s) | C | 60 | 15.7 |
20724 | 2020-01-05 22:09:20 | MASTER-Amur | (16h 34m 20.70s , +12d 08m 16.5s) | C | 60 | 15.3 |
20809 | 2020-01-05 22:09:44 | MASTER-Tunka | (13h 26m 13.51s , +52d 00m 18.0s) | C | 180 | 19.5 |
20816 | 2020-01-05 22:10:51 | MASTER-Amur | (16h 42m 30.59s , +12d 09m 11.0s) | C | 60 | 15.3 |
20830 | 2020-01-05 22:11:06 | MASTER-IAC | (04h 09m 03.79s , -32d 03m 03.1s) | C | 60 | 18.4 |
20830 | 2020-01-05 22:11:06 | MASTER-IAC | (03h 59m 30.58s , -31d 59m 35.3s) | C | 60 | 18.2 |
20909 | 2020-01-05 22:12:25 | MASTER-Amur | (16h 30m 20.22s , +08d 08m 28.3s) | C | 60 | 15.3 |
21019 | 2020-01-05 22:13:14 | MASTER-Tunka | (13h 39m 23.12s , +51d 58m 58.2s) | C | 180 | 19.6 |
21000 | 2020-01-05 22:13:56 | MASTER-Amur | (16h 50m 38.45s , +14d 07m 02.9s) | C | 60 | 15.3 |
21055 | 2020-01-05 22:14:51 | MASTER-IAC | (04h 08m 57.84s , -32d 04m 04.9s) | C | 60 | 18.3 |
21055 | 2020-01-05 22:14:51 | MASTER-IAC | (03h 59m 24.46s , -32d 00m 37.2s) | C | 60 | 18.2 |
21091 | 2020-01-05 22:15:27 | MASTER-Amur | (16h 27m 40.32s , +10d 09m 30.4s) | C | 60 | 15.3 |
21232 | 2020-01-05 22:16:48 | MASTER-Tunka | (13h 52m 20.34s , +51d 57m 36.0s) | C | 180 | 19.7 |
21182 | 2020-01-05 22:16:58 | MASTER-Amur | (16h 42m 34.72s , +12d 07m 18.5s) | C | 60 | 15.1 |
21273 | 2020-01-05 22:18:29 | MASTER-Amur | (16h 17m 58.09s , +06d 08m 48.1s) | C | 60 | 15.4 |
21365 | 2020-01-05 22:20:00 | MASTER-Amur | (16h 13m 17.75s , +02d 08m 54.2s) | C | 60 | 14.9 |
21442 | 2020-01-05 22:20:18 | MASTER-Tunka | (14h 05m 30.04s , +51d 57m 35.6s) | C | 180 | 19.6 |
21508 | 2020-01-05 22:22:24 | MASTER-Amur | (16h 27m 38.82s , +10d 07m 37.7s) | C | 60 | 15.1 |
21655 | 2020-01-05 22:23:51 | MASTER-Tunka | (14h 18m 29.25s , +51d 58m 30.0s) | C | 180 | 19.6 |
21597 | 2020-01-05 22:23:53 | MASTER-Amur | (16h 35m 50.44s , +10d 07m 42.1s) | C | 60 | 14.8 |
21646 | 2020-01-05 22:24:41 | MASTER-IAC | (03h 45m 16.13s , -30d 02m 38.8s) | C | 60 | 18.6 |
21706 | 2020-01-05 22:24:41 | MASTER-IAC | (03h 45m 16.13s , -30d 02m 38.8s) | C | 180 | 19.1 | Coadd
21646 | 2020-01-05 22:24:41 | MASTER-IAC | (03h 35m 53.95s , -29d 59m 09.0s) | C | 60 | 17.9 |
21706 | 2020-01-05 22:24:41 | MASTER-IAC | (03h 35m 53.95s , -29d 59m 09.0s) | C | 180 | 18.6 | Coadd
21743 | 2020-01-05 22:26:18 | MASTER-Amur | (16h 18m 01.71s , +06d 09m 44.8s) | C | 60 | 14.0 |
21775 | 2020-01-05 22:26:51 | MASTER-IAC | (03h 45m 21.86s , -30d 03m 44.5s) | C | 60 | 18.6 |
21775 | 2020-01-05 22:26:51 | MASTER-IAC | (03h 35m 59.72s , -30d 00m 16.5s) | C | 60 | 17.9 |
21867 | 2020-01-05 22:27:23 | MASTER-Tunka | (14h 31m 31.91s , +51d 56m 42.9s) | C | 180 | 19.7 |
21908 | 2020-01-05 22:29:03 | MASTER-IAC | (03h 35m 53.86s , -30d 01m 21.6s) | C | 60 | 18.0 |
21909 | 2020-01-05 22:29:05 | MASTER-IAC | (03h 45m 16.05s , -30d 04m 48.5s) | C | 60 | 18.7 |
22051 | 2020-01-05 22:31:27 | MASTER-IAC | (07h 10m 16.68s , +26d 01m 58.3s) | C | 60 | 18.4 |
22051 | 2020-01-05 22:31:27 | MASTER-IAC | (07h 01m 12.00s , +26d 05m 40.5s) | C | 60 | 17.9 |
22192 | 2020-01-05 22:33:47 | MASTER-IAC | (07h 01m 08.94s , +26d 07m 16.7s) | C | 60 | 18.1 |
22192 | 2020-01-05 22:33:47 | MASTER-IAC | (07h 10m 14.01s , +26d 03m 30.1s) | C | 60 | 18.6 |
22417 | 2020-01-05 22:37:33 | MASTER-IAC | (07h 20m 51.43s , +24d 03m 52.9s) | C | 60 | 18.4 |
22418 | 2020-01-05 22:37:33 | MASTER-IAC | (07h 11m 55.12s , +24d 07m 41.7s) | C | 60 | 18.0 |
22478 | 2020-01-05 22:37:33 | MASTER-IAC | (07h 11m 55.12s , +24d 07m 41.7s) | C | 180 | 18.6 | Coadd
22560 | 2020-01-05 22:39:55 | MASTER-IAC | (07h 11m 49.60s , +24d 06m 49.8s) | C | 60 | 18.0 |
22673 | 2020-01-05 22:41:48 | MASTER-Tunka | (16h 29m 26.78s , +13d 50m 34.2s) | C | 60 | 18.5 |
22673 | 2020-01-05 22:41:49 | MASTER-IAC | (07h 11m 49.31s , +24d 07m 50.3s) | C | 60 | 17.9 |
22673 | 2020-01-05 22:41:49 | MASTER-IAC | (07h 20m 45.81s , +24d 04m 00.4s) | C | 60 | 18.4 |
22834 | 2020-01-05 22:43:29 | MASTER-Tunka | (13h 06m 10.11s , +41d 59m 37.8s) | C | 180 | 19.8 |
22808 | 2020-01-05 22:44:03 | MASTER-IAC | (07h 29m 25.21s , +24d 07m 20.4s) | C | 60 | 17.9 |
22868 | 2020-01-05 22:44:03 | MASTER-IAC | (07h 29m 25.21s , +24d 07m 20.4s) | C | 180 | 18.7 | Coadd
22808 | 2020-01-05 22:44:03 | MASTER-IAC | (07h 38m 21.57s , +24d 03m 29.8s) | C | 60 | 18.7 |
22868 | 2020-01-05 22:44:03 | MASTER-IAC | (07h 38m 21.57s , +24d 03m 29.8s) | C | 180 | 19.4 | Coadd
22940 | 2020-01-05 22:46:15 | MASTER-IAC | (07h 29m 20.55s , +24d 06m 20.5s) | C | 60 | 17.9 |
22940 | 2020-01-05 22:46:15 | MASTER-IAC | (07h 38m 16.94s , +24d 02m 29.8s) | C | 60 | 18.8 |
22994 | 2020-01-05 22:47:09 | MASTER-Tunka | (16h 29m 29.31s , +13d 52m 38.9s) | C | 60 | 18.2 |
23077 | 2020-01-05 22:48:33 | MASTER-IAC | (07h 38m 21.67s , +24d 02m 49.2s) | C | 60 | 18.8 |
23077 | 2020-01-05 22:48:33 | MASTER-IAC | (07h 29m 25.25s , +24d 06m 40.0s) | C | 60 | 17.9 |
23084 | 2020-01-05 22:48:40 | MASTER-Tunka | (16h 37m 43.95s , +13d 50m 21.3s) | C | 60 | 18.2 |
23181 | 2020-01-05 22:50:17 | MASTER-Tunka | (16h 21m 27.05s , +11d 52m 21.0s) | C | 60 | 18.4 |
23213 | 2020-01-05 22:50:48 | MASTER-IAC | (07h 28m 02.92s , +26d 03m 42.2s) | C | 60 | 18.5 |
23273 | 2020-01-05 22:50:48 | MASTER-IAC | (07h 28m 02.92s , +26d 03m 42.3s) | C | 180 | 19.2 | Coadd
23213 | 2020-01-05 22:50:49 | MASTER-IAC | (07h 18m 57.28s , +26d 07m 32.8s) | C | 60 | 17.9 |
23273 | 2020-01-05 22:50:49 | MASTER-IAC | (07h 18m 57.28s , +26d 07m 32.8s) | C | 180 | 18.7 | Coadd
23275 | 2020-01-05 22:51:50 | MASTER-Tunka | (16h 46m 00.60s , +13d 50m 52.5s) | C | 60 | 18.0 |
23347 | 2020-01-05 22:53:02 | MASTER-IAC | (07h 28m 02.85s , +26d 02m 41.3s) | C | 60 | 18.4 |
23348 | 2020-01-05 22:53:04 | MASTER-IAC | (07h 18m 57.38s , +26d 06m 31.6s) | C | 60 | 17.9 |
23368 | 2020-01-05 22:53:24 | MASTER-Tunka | (16h 29m 25.62s , +13d 50m 58.0s) | C | 60 | 18.3 |
23464 | 2020-01-05 22:54:59 | MASTER-Tunka | (16h 37m 47.25s , +13d 50m 59.7s) | C | 60 | 18.1 |
23482 | 2020-01-05 22:55:18 | MASTER-IAC | (07h 19m 00.35s , +26d 07m 38.3s) | C | 60 | 18.0 |
23482 | 2020-01-05 22:55:18 | MASTER-IAC | (07h 28m 05.99s , +26d 03m 47.9s) | C | 60 | 18.5 |
23558 | 2020-01-05 22:56:33 | MASTER-Tunka | (16h 21m 30.17s , +11d 53m 22.4s) | C | 60 | 18.3 |
23651 | 2020-01-05 22:58:06 | MASTER-Tunka | (16h 29m 40.90s , +11d 51m 33.2s) | C | 60 | 18.2 |
23983 | 2020-01-05 23:03:38 | MASTER-Tunka | (16h 45m 55.80s , +13d 51m 17.2s) | C | 60 | 17.9 |
24019 | 2020-01-05 23:04:15 | MASTER-IAC | (07h 46m 51.60s , +24d 06m 48.4s) | C | 60 | 18.5 |
24079 | 2020-01-05 23:04:15 | MASTER-IAC | (07h 46m 51.60s , +24d 06m 48.4s) | C | 180 | 19.1 | Coadd
24019 | 2020-01-05 23:04:15 | MASTER-IAC | (07h 55m 47.86s , +24d 02m 58.1s) | C | 60 | 18.7 |
24079 | 2020-01-05 23:04:15 | MASTER-IAC | (07h 55m 47.86s , +24d 02m 58.0s) | C | 180 | 19.5 | Coadd
24072 | 2020-01-05 23:05:07 | MASTER-Tunka | (16h 45m 55.44s , +13d 52m 22.3s) | C | 60 | 18.0 |
24155 | 2020-01-05 23:06:31 | MASTER-IAC | (07h 46m 58.15s , +24d 06m 57.7s) | C | 60 | 18.4 |
24155 | 2020-01-05 23:06:31 | MASTER-IAC | (07h 55m 54.42s , +24d 03m 07.3s) | C | 60 | 18.8 |
24231 | 2020-01-05 23:06:47 | MASTER-Tunka | (13h 54m 34.63s , +43d 59m 33.1s) | C | 180 | 19.5 |
24287 | 2020-01-05 23:08:43 | MASTER-IAC | (07h 55m 50.77s , +24d 04m 53.7s) | C | 60 | 18.8 |
24287 | 2020-01-05 23:08:43 | MASTER-IAC | (07h 46m 54.34s , +24d 08m 44.0s) | C | 60 | 18.4 |
24391 | 2020-01-05 23:10:27 | MASTER-Tunka | (16h 54m 10.40s , +13d 50m 02.7s) | C | 60 | 18.2 |
24481 | 2020-01-05 23:11:57 | MASTER-Tunka | (16h 37m 46.96s , +13d 51m 23.4s) | C | 60 | 18.1 |
24642 | 2020-01-05 23:13:37 | MASTER-Tunka | (13h 39m 09.31s , +52d 00m 45.5s) | C | 180 | 19.4 |
24799 | 2020-01-05 23:17:15 | MASTER-Tunka | (16h 21m 31.15s , +11d 52m 39.6s) | C | 60 | 18.1 |
24835 | 2020-01-05 23:17:51 | MASTER-IAC | (07h 01m 05.67s , +26d 07m 47.9s) | C | 60 | 18.4 |
24895 | 2020-01-05 23:17:51 | MASTER-IAC | (07h 01m 05.67s , +26d 07m 47.9s) | C | 180 | 19.0 | Coadd
24835 | 2020-01-05 23:17:51 | MASTER-IAC | (07h 10m 11.87s , +26d 03m 51.9s) | C | 60 | 18.6 |
24895 | 2020-01-05 23:17:51 | MASTER-IAC | (07h 10m 11.87s , +26d 03m 51.9s) | C | 180 | 19.4 | Coadd
24887 | 2020-01-05 23:18:43 | MASTER-Tunka | (16h 21m 34.07s , +11d 54m 16.0s) | C | 60 | 18.3 |
24969 | 2020-01-05 23:20:05 | MASTER-IAC | (07h 01m 11.67s , +26d 06m 46.0s) | C | 60 | 18.5 |
24969 | 2020-01-05 23:20:05 | MASTER-IAC | (07h 10m 17.71s , +26d 02m 49.3s) | C | 60 | 18.6 |
24983 | 2020-01-05 23:20:19 | MASTER-Tunka | (16h 29m 39.75s , +11d 52m 52.1s) | C | 60 | 18.1 |
25072 | 2020-01-05 23:21:47 | MASTER-Tunka | (16h 29m 38.01s , +11d 53m 55.2s) | C | 60 | 18.1 |
25101 | 2020-01-05 23:22:16 | MASTER-IAC | (07h 01m 05.13s , +26d 05m 43.9s) | C | 60 | 18.5 |
25101 | 2020-01-05 23:22:16 | MASTER-IAC | (07h 10m 11.03s , +26d 01m 48.0s) | C | 60 | 18.7 |
25165 | 2020-01-05 23:23:21 | MASTER-Tunka | (16h 29m 45.97s , +11d 52m 56.7s) | C | 60 | 18.1 |
25239 | 2020-01-05 23:24:34 | MASTER-IAC | (07h 11m 54.42s , +24d 06m 08.3s) | C | 60 | 18.4 |
25299 | 2020-01-05 23:24:34 | MASTER-IAC | (07h 11m 54.42s , +24d 06m 08.3s) | C | 180 | 19.1 | Coadd
25239 | 2020-01-05 23:24:35 | MASTER-IAC | (07h 20m 51.34s , +24d 02m 12.7s) | C | 60 | 18.6 |
25299 | 2020-01-05 23:24:35 | MASTER-IAC | (07h 20m 51.34s , +24d 02m 12.7s) | C | 180 | 19.4 | Coadd
25326 | 2020-01-05 23:25:02 | MASTER-Tunka | (14h 05m 12.28s , +51d 58m 33.8s) | C | 180 | 18.5 |
25374 | 2020-01-05 23:26:49 | MASTER-IAC | (07h 11m 50.80s , +24d 07m 39.0s) | C | 60 | 18.3 |
25374 | 2020-01-05 23:26:49 | MASTER-IAC | (07h 20m 47.76s , +24d 03m 43.4s) | C | 60 | 18.6 |
25508 | 2020-01-05 23:29:04 | MASTER-IAC | (07h 20m 47.66s , +24d 02m 20.4s) | C | 60 | 19.0 |
25508 | 2020-01-05 23:29:04 | MASTER-IAC | (07h 11m 50.88s , +24d 06m 16.2s) | C | 60 | 18.3 |
25648 | 2020-01-05 23:31:23 | MASTER-IAC | (07h 29m 24.98s , +24d 08m 16.7s) | C | 60 | 18.4 |
25708 | 2020-01-05 23:31:23 | MASTER-IAC | (07h 29m 24.98s , +24d 08m 16.7s) | C | 180 | 19.1 | Coadd
25648 | 2020-01-05 23:31:23 | MASTER-IAC | (07h 38m 21.64s , +24d 04m 19.5s) | C | 60 | 18.8 |
25708 | 2020-01-05 23:31:23 | MASTER-IAC | (07h 38m 21.64s , +24d 04m 19.5s) | C | 180 | 19.4 | Coadd
25781 | 2020-01-05 23:33:37 | MASTER-IAC | (07h 29m 18.50s , +24d 07m 30.3s) | C | 60 | 18.4 |
25781 | 2020-01-05 23:33:37 | MASTER-IAC | (07h 38m 15.12s , +24d 03m 33.8s) | C | 60 | 18.8 |
25914 | 2020-01-05 23:35:49 | MASTER-IAC | (07h 38m 16.13s , +24d 04m 33.2s) | C | 60 | 18.8 |
25914 | 2020-01-05 23:35:49 | MASTER-IAC | (07h 29m 19.46s , +24d 08m 30.1s) | C | 60 | 18.3 |
26054 | 2020-01-05 23:38:10 | MASTER-IAC | (07h 18m 58.67s , +26d 07m 10.4s) | C | 60 | 18.4 |
26114 | 2020-01-05 23:38:10 | MASTER-IAC | (07h 18m 58.67s , +26d 07m 10.4s) | C | 180 | 19.2 | Coadd
26054 | 2020-01-05 23:38:10 | MASTER-IAC | (07h 28m 04.28s , +26d 03m 13.7s) | C | 60 | 18.6 |
26114 | 2020-01-05 23:38:10 | MASTER-IAC | (07h 28m 04.28s , +26d 03m 13.7s) | C | 180 | 19.4 | Coadd
26188 | 2020-01-05 23:40:24 | MASTER-IAC | (07h 27m 58.93s , +26d 02m 13.6s) | C | 60 | 18.6 |
26188 | 2020-01-05 23:40:24 | MASTER-IAC | (07h 18m 53.30s , +26d 06m 10.0s) | C | 60 | 18.4 |
26321 | 2020-01-05 23:42:36 | MASTER-IAC | (07h 28m 05.04s , +26d 02m 41.8s) | C | 60 | 18.6 |
26321 | 2020-01-05 23:42:36 | MASTER-IAC | (07h 18m 59.43s , +26d 06m 38.1s) | C | 60 | 18.4 |
26905 | 2020-01-05 23:51:21 | MASTER-Tunka | (14h 31m 14.17s , +52d 00m 12.6s) | C | 180 | 18.9 |
26859 | 2020-01-05 23:51:34 | MASTER-IAC | (07h 55m 47.75s , +24d 04m 00.8s) | C | 60 | 17.7 |
26919 | 2020-01-05 23:51:34 | MASTER-IAC | (07h 55m 47.75s , +24d 04m 00.9s) | C | 180 | 19.2 | Coadd
26859 | 2020-01-05 23:51:34 | MASTER-IAC | (07h 46m 51.22s , +24d 07m 57.8s) | C | 60 | 17.5 |
26919 | 2020-01-05 23:51:34 | MASTER-IAC | (07h 46m 51.20s , +24d 07m 57.7s) | C | 180 | 19.0 | Coadd
26996 | 2020-01-05 23:53:52 | MASTER-IAC | (07h 46m 51.29s , +24d 08m 57.4s) | C | 60 | 18.5 |
26997 | 2020-01-05 23:53:52 | MASTER-IAC | (07h 55m 48.01s , +24d 05m 00.1s) | C | 60 | 18.8 |
27064 | 2020-01-05 23:54:59 | MASTER-Tunka | (16h 46m 03.52s , +13d 53m 04.3s) | C | 60 | 17.2 |
27127 | 2020-01-05 23:56:03 | MASTER-IAC | (07h 46m 57.40s , +24d 07m 57.2s) | C | 60 | 18.5 |
27127 | 2020-01-05 23:56:03 | MASTER-IAC | (07h 55m 54.01s , +24d 03m 59.9s) | C | 60 | 18.9 |
27155 | 2020-01-05 23:56:31 | MASTER-Tunka | (16h 54m 11.75s , +13d 51m 37.6s) | C | 60 | 17.1 |
27248 | 2020-01-05 23:58:04 | MASTER-Tunka | (16h 29m 45.24s , +11d 53m 31.1s) | C | 60 | 17.1 |
27258 | 2020-01-05 23:58:14 | MASTER-IAC | (07h 46m 49.77s , +24d 06m 56.5s) | C | 60 | 18.6 |
27258 | 2020-01-05 23:58:14 | MASTER-IAC | (07h 55m 46.33s , +24d 02m 59.2s) | C | 60 | 18.8 |
27527 | 2020-01-06 00:02:43 | MASTER-Tunka | (16h 54m 10.60s , +13d 53m 33.8s) | C | 60 | 16.6 |
27618 | 2020-01-06 00:04:14 | MASTER-Tunka | (16h 38m 42.00s , +15d 54m 51.2s) | C | 60 | 16.5 |
27712 | 2020-01-06 00:05:48 | MASTER-Tunka | (17h 06m 19.23s , +17d 51m 14.5s) | C | 60 | 16.1 |
27802 | 2020-01-06 00:07:17 | MASTER-Tunka | (17h 06m 25.76s , +17d 51m 25.8s) | C | 60 | 15.9 |
28626 | 2020-01-06 00:21:02 | MASTER-IAC | (08h 24m 59.07s , +20d 10m 00.9s) | C | 60 | 18.2 |
28686 | 2020-01-06 00:21:02 | MASTER-IAC | (08h 24m 59.07s , +20d 10m 00.9s) | C | 180 | 19.0 | Coadd
28756 | 2020-01-06 00:23:12 | MASTER-IAC | (08h 24m 59.01s , +20d 08m 03.5s) | C | 60 | 18.3 |
28888 | 2020-01-06 00:25:24 | MASTER-IAC | (08h 25m 02.86s , +20d 09m 57.7s) | C | 60 | 18.3 |
29028 | 2020-01-06 00:27:44 | MASTER-IAC | (08h 12m 19.27s , +26d 08m 38.7s) | C | 60 | 18.6 |
29088 | 2020-01-06 00:27:44 | MASTER-IAC | (08h 12m 19.26s , +26d 08m 38.7s) | C | 180 | 19.2 | Coadd
29028 | 2020-01-06 00:27:44 | MASTER-IAC | (08h 21m 25.03s , +26d 04m 34.1s) | C | 60 | 18.9 |
29088 | 2020-01-06 00:27:44 | MASTER-IAC | (08h 21m 25.03s , +26d 04m 34.0s) | C | 180 | 19.6 | Coadd
29164 | 2020-01-06 00:29:59 | MASTER-IAC | (08h 12m 18.43s , +26d 09m 38.7s) | C | 60 | 18.5 |
29164 | 2020-01-06 00:29:59 | MASTER-IAC | (08h 21m 24.29s , +26d 05m 34.1s) | C | 60 | 18.9 |
29301 | 2020-01-06 00:32:17 | MASTER-IAC | (08h 21m 30.94s , +26d 04m 34.0s) | C | 60 | 19.0 |
29302 | 2020-01-06 00:32:18 | MASTER-IAC | (08h 12m 25.12s , +26d 08m 38.7s) | C | 60 | 18.6 |
29437 | 2020-01-06 00:34:33 | MASTER-IAC | (07h 39m 57.64s , +22d 06m 42.0s) | C | 60 | 18.5 |
29497 | 2020-01-06 00:34:33 | MASTER-IAC | (07h 39m 57.64s , +22d 06m 42.0s) | C | 180 | 19.3 | Coadd
29437 | 2020-01-06 00:34:33 | MASTER-IAC | (07h 48m 46.59s , +22d 02m 40.2s) | C | 60 | 18.7 |
29497 | 2020-01-06 00:34:33 | MASTER-IAC | (07h 48m 46.59s , +22d 02m 40.2s) | C | 180 | 19.4 | Coadd
29572 | 2020-01-06 00:36:48 | MASTER-IAC | (07h 40m 02.74s , +22d 07m 03.2s) | C | 60 | 18.5 |
29572 | 2020-01-06 00:36:48 | MASTER-IAC | (07h 48m 51.83s , +22d 03m 01.4s) | C | 60 | 18.7 |
29707 | 2020-01-06 00:39:03 | MASTER-IAC | (07h 39m 59.82s , +22d 08m 28.5s) | C | 60 | 18.6 |
29707 | 2020-01-06 00:39:03 | MASTER-IAC | (07h 48m 49.04s , +22d 04m 26.7s) | C | 60 | 18.7 |
29840 | 2020-01-06 00:41:15 | MASTER-IAC | (07h 22m 43.59s , +22d 06m 18.3s) | C | 60 | 18.3 |
29900 | 2020-01-06 00:41:15 | MASTER-IAC | (07h 22m 43.59s , +22d 06m 18.3s) | C | 180 | 19.1 | Coadd
29840 | 2020-01-06 00:41:16 | MASTER-IAC | (07h 31m 32.91s , +22d 02m 17.6s) | C | 60 | 18.6 |
29900 | 2020-01-06 00:41:16 | MASTER-IAC | (07h 31m 32.91s , +22d 02m 17.6s) | C | 180 | 19.4 | Coadd
29976 | 2020-01-06 00:43:32 | MASTER-IAC | (07h 31m 36.13s , +22d 03m 52.3s) | C | 60 | 18.7 |
29976 | 2020-01-06 00:43:32 | MASTER-IAC | (07h 22m 46.57s , +22d 07m 52.7s) | C | 60 | 18.4 |
30108 | 2020-01-06 00:45:43 | MASTER-IAC | (07h 22m 40.21s , +22d 07m 05.4s) | C | 60 | 18.3 |
30109 | 2020-01-06 00:45:44 | MASTER-IAC | (07h 31m 29.67s , +22d 03m 05.3s) | C | 60 | 18.7 |
30239 | 2020-01-06 00:47:54 | MASTER-IAC | (07h 25m 29.05s , +20d 03m 54.1s) | C | 60 | 18.5 |
30299 | 2020-01-06 00:47:54 | MASTER-IAC | (07h 25m 29.05s , +20d 03m 54.1s) | C | 180 | 19.5 | Coadd
30239 | 2020-01-06 00:47:55 | MASTER-IAC | (07h 16m 46.67s , +20d 07m 53.2s) | C | 60 | 18.4 |
30299 | 2020-01-06 00:47:55 | MASTER-IAC | (07h 16m 46.66s , +20d 07m 53.2s) | C | 180 | 19.1 | Coadd
30376 | 2020-01-06 00:50:11 | MASTER-IAC | (07h 25m 33.99s , +20d 02m 53.1s) | C | 60 | 18.5 |
30376 | 2020-01-06 00:50:11 | MASTER-IAC | (07h 16m 51.67s , +20d 06m 52.5s) | C | 60 | 18.4 |
30547 | 2020-01-06 00:52:03 | MASTER-Kislovodsk | (12h 48m 38.61s , +42d 09m 49.9s) | C | 180 | 19.5 |
30547 | 2020-01-06 00:52:03 | MASTER-Kislovodsk | (13h 00m 15.08s , +41d 42m 42.2s) | C | 180 | 19.8 |
30510 | 2020-01-06 00:52:25 | MASTER-IAC | (07h 16m 46.50s , +20d 05m 51.1s) | C | 60 | 18.4 |
30510 | 2020-01-06 00:52:26 | MASTER-IAC | (07h 25m 28.66s , +20d 01m 51.6s) | C | 60 | 18.6 |
31466 | 2020-01-06 01:08:22 | MASTER-IAC | (08h 25m 01.92s , +20d 08m 56.4s) | C | 60 | 18.5 |
31876 | 2020-01-06 01:15:12 | MASTER-IAC | (08h 21m 24.29s , +26d 05m 27.3s) | C | 60 | 19.1 |
31876 | 2020-01-06 01:15:12 | MASTER-IAC | (08h 12m 17.73s , +26d 09m 29.2s) | C | 60 | 18.6 |
32010 | 2020-01-06 01:17:25 | MASTER-IAC | (08h 21m 30.28s , +26d 04m 26.5s) | C | 60 | 19.1 |
32011 | 2020-01-06 01:17:26 | MASTER-IAC | (08h 12m 23.80s , +26d 08m 28.7s) | C | 60 | 18.7 |
32150 | 2020-01-06 01:19:46 | MASTER-IAC | (07h 39m 56.72s , +22d 06m 29.3s) | C | 60 | 18.7 |
32210 | 2020-01-06 01:19:46 | MASTER-IAC | (07h 39m 56.72s , +22d 06m 29.3s) | C | 180 | 19.5 | Coadd
32150 | 2020-01-06 01:19:46 | MASTER-IAC | (07h 48m 46.19s , +22d 02m 29.6s) | C | 60 | 18.9 |
32210 | 2020-01-06 01:19:46 | MASTER-IAC | (07h 48m 46.19s , +22d 02m 29.7s) | C | 180 | 19.5 | Coadd
32282 | 2020-01-06 01:21:57 | MASTER-IAC | (07h 48m 52.70s , +22d 02m 34.2s) | C | 60 | 18.9 |
32282 | 2020-01-06 01:21:57 | MASTER-IAC | (07h 40m 03.20s , +22d 06m 34.1s) | C | 60 | 18.7 |
32415 | 2020-01-06 01:24:11 | MASTER-IAC | (07h 39m 59.08s , +22d 07m 57.7s) | C | 60 | 18.6 |
32415 | 2020-01-06 01:24:11 | MASTER-IAC | (07h 48m 48.66s , +22d 03m 58.0s) | C | 60 | 18.9 |
32555 | 2020-01-06 01:26:31 | MASTER-IAC | (07h 22m 43.07s , +22d 06m 04.8s) | C | 60 | 18.3 |
32615 | 2020-01-06 01:26:31 | MASTER-IAC | (07h 22m 43.06s , +22d 06m 04.8s) | C | 180 | 19.1 | Coadd
32555 | 2020-01-06 01:26:31 | MASTER-IAC | (07h 31m 32.60s , +22d 02m 06.0s) | C | 60 | 18.8 |
32615 | 2020-01-06 01:26:31 | MASTER-IAC | (07h 31m 32.60s , +22d 02m 06.0s) | C | 180 | 19.5 | Coadd
32693 | 2020-01-06 01:28:48 | MASTER-IAC | (07h 22m 46.52s , +22d 07m 27.4s) | C | 60 | 18.4 |
32693 | 2020-01-06 01:28:48 | MASTER-IAC | (07h 31m 36.12s , +22d 03m 28.9s) | C | 60 | 18.7 |
32829 | 2020-01-06 01:31:05 | MASTER-IAC | (07h 22m 39.79s , +22d 06m 49.8s) | C | 60 | 18.3 |
32830 | 2020-01-06 01:31:05 | MASTER-IAC | (07h 31m 29.37s , +22d 02m 51.3s) | C | 60 | 18.7 |
32963 | 2020-01-06 01:33:19 | MASTER-IAC | (07h 16m 45.57s , +20d 07m 36.3s) | C | 60 | 18.3 |
33023 | 2020-01-06 01:33:19 | MASTER-IAC | (07h 16m 45.57s , +20d 07m 36.3s) | C | 180 | 19.1 | Coadd
32963 | 2020-01-06 01:33:19 | MASTER-IAC | (07h 25m 28.00s , +20d 03m 39.3s) | C | 60 | 18.5 |
33023 | 2020-01-06 01:33:19 | MASTER-IAC | (07h 25m 28.00s , +20d 03m 39.3s) | C | 180 | 19.3 | Coadd
33098 | 2020-01-06 01:35:33 | MASTER-IAC | (07h 16m 51.94s , +20d 06m 35.6s) | C | 60 | 18.3 |
33098 | 2020-01-06 01:35:33 | MASTER-IAC | (07h 25m 34.35s , +20d 02m 38.0s) | C | 60 | 18.5 |
33249 | 2020-01-06 01:38:04 | MASTER-IAC | (07h 25m 27.95s , +20d 01m 37.4s) | C | 60 | 18.6 |
33249 | 2020-01-06 01:38:04 | MASTER-IAC | (07h 16m 45.42s , +20d 05m 33.9s) | C | 60 | 18.4 |
33527 | 2020-01-06 01:42:43 | MASTER-IAC | (07h 59m 35.65s , +20d 04m 06.5s) | C | 60 | 18.5 |
33587 | 2020-01-06 01:42:43 | MASTER-IAC | (07h 59m 35.65s , +20d 04m 06.4s) | C | 180 | 19.3 | Coadd
33527 | 2020-01-06 01:42:43 | MASTER-IAC | (07h 50m 53.65s , +20d 07m 47.3s) | C | 60 | 18.5 |
33587 | 2020-01-06 01:42:43 | MASTER-IAC | (07h 50m 53.65s , +20d 07m 47.3s) | C | 180 | 19.3 | Coadd
33667 | 2020-01-06 01:45:02 | MASTER-IAC | (07h 50m 53.68s , +20d 06m 33.7s) | C | 60 | 18.5 |
33667 | 2020-01-06 01:45:02 | MASTER-IAC | (07h 59m 35.59s , +20d 02m 52.7s) | C | 60 | 18.5 |
33791 | 2020-01-06 01:47:07 | MASTER-Kislovodsk | (16h 09m 39.36s , +10d 08m 28.5s) | C | 60 | 18.2 |
33791 | 2020-01-06 01:47:07 | MASTER-Kislovodsk | (16h 18m 09.19s , +09d 40m 41.1s) | C | 60 | 18.4 |
33804 | 2020-01-06 01:47:19 | MASTER-IAC | (07h 50m 55.63s , +20d 08m 10.6s) | C | 60 | 18.6 |
33804 | 2020-01-06 01:47:19 | MASTER-IAC | (07h 59m 37.65s , +20d 04m 28.9s) | C | 60 | 18.6 |
33884 | 2020-01-06 01:48:39 | MASTER-Kislovodsk | (16h 16m 13.60s , +12d 07m 01.6s) | C | 60 | 18.3 |
33884 | 2020-01-06 01:48:39 | MASTER-Kislovodsk | (16h 24m 46.81s , +11d 39m 24.5s) | C | 60 | 18.5 |
33978 | 2020-01-06 01:50:13 | MASTER-Kislovodsk | (16h 24m 15.25s , +14d 07m 01.6s) | C | 60 | 18.3 |
33978 | 2020-01-06 01:50:13 | MASTER-Kislovodsk | (16h 32m 52.46s , +13d 39m 22.4s) | C | 60 | 18.3 |
34078 | 2020-01-06 01:51:54 | MASTER-Kislovodsk | (16h 33m 29.10s , +16d 08m 22.3s) | C | 60 | 18.0 |
34078 | 2020-01-06 01:51:54 | MASTER-Kislovodsk | (16h 42m 11.10s , +15d 40m 39.9s) | C | 60 | 18.1 |
34080 | 2020-01-06 01:51:55 | MASTER-IAC | (07h 45m 12.65s , +18d 08m 00.8s) | C | 60 | 18.5 |
34140 | 2020-01-06 01:51:55 | MASTER-IAC | (07h 45m 12.65s , +18d 08m 00.8s) | C | 180 | 19.2 | Coadd
34081 | 2020-01-06 01:51:56 | MASTER-IAC | (07h 53m 47.92s , +18d 04m 20.2s) | C | 60 | 18.7 |
34141 | 2020-01-06 01:51:56 | MASTER-IAC | (07h 53m 47.92s , +18d 04m 20.2s) | C | 180 | 19.5 | Coadd
34235 | 2020-01-06 01:53:30 | MASTER-Kislovodsk | (12h 48m 40.82s , +42d 10m 18.3s) | C | 180 | 19.0 |
34415 | 2020-01-06 01:53:30 | MASTER-Kislovodsk | (12h 48m 40.83s , +42d 10m 18.4s) | C | 540 | 19.8 | Coadd
34235 | 2020-01-06 01:53:30 | MASTER-Kislovodsk | (13h 00m 21.19s , +41d 43m 57.1s) | C | 180 | 19.6 |
34415 | 2020-01-06 01:53:30 | MASTER-Kislovodsk | (13h 00m 21.21s , +41d 43m 56.8s) | C | 540 | 20.4 | Coadd
34215 | 2020-01-06 01:54:11 | MASTER-IAC | (07h 53m 54.31s , +18d 03m 21.0s) | C | 60 | 18.6 |
34215 | 2020-01-06 01:54:11 | MASTER-IAC | (07h 45m 19.05s , +18d 07m 01.7s) | C | 60 | 18.5 |
34348 | 2020-01-06 01:56:23 | MASTER-IAC | (07h 53m 48.96s , +18d 02m 20.4s) | C | 60 | 18.7 |
34348 | 2020-01-06 01:56:23 | MASTER-IAC | (07h 45m 13.69s , +18d 06m 01.1s) | C | 60 | 18.5 |
34446 | 2020-01-06 01:57:01 | MASTER-Kislovodsk | (12h 48m 41.99s , +42d 11m 54.4s) | C | 180 | 19.0 |
34446 | 2020-01-06 01:57:02 | MASTER-Kislovodsk | (13h 00m 23.38s , +41d 45m 37.6s) | C | 180 | 19.5 |
34673 | 2020-01-06 02:00:48 | MASTER-Kislovodsk | (12h 48m 36.69s , +42d 11m 03.3s) | C | 180 | 19.3 |
34673 | 2020-01-06 02:00:48 | MASTER-Kislovodsk | (13h 00m 18.27s , +41d 44m 49.1s) | C | 180 | 19.5 |
34626 | 2020-01-06 02:01:02 | MASTER-IAC | (07h 56m 58.60s , +16d 08m 08.7s) | C | 60 | 18.4 |
34686 | 2020-01-06 02:01:02 | MASTER-IAC | (07h 56m 58.60s , +16d 08m 08.7s) | C | 180 | 19.0 | Coadd
34626 | 2020-01-06 02:01:02 | MASTER-IAC | (08h 05m 28.41s , +16d 04m 27.9s) | C | 60 | 18.8 |
34686 | 2020-01-06 02:01:02 | MASTER-IAC | (08h 05m 28.42s , +16d 04m 27.9s) | C | 180 | 19.5 | Coadd
34759 | 2020-01-06 02:03:15 | MASTER-IAC | (08h 05m 28.36s , +16d 02m 59.8s) | C | 60 | 18.8 |
34759 | 2020-01-06 02:03:15 | MASTER-IAC | (07h 56m 58.58s , +16d 06m 41.0s) | C | 60 | 18.3 |
34835 | 2020-01-06 02:04:31 | MASTER-Kislovodsk | (16h 09m 34.17s , +10d 09m 32.5s) | C | 60 | 18.4 |
34835 | 2020-01-06 02:04:31 | MASTER-Kislovodsk | (16h 18m 06.25s , +09d 41m 57.2s) | C | 60 | 18.4 |
34891 | 2020-01-06 02:05:26 | MASTER-IAC | (07h 57m 02.29s , +16d 07m 49.6s) | C | 60 | 18.4 |
34891 | 2020-01-06 02:05:26 | MASTER-IAC | (08h 05m 32.07s , +16d 04m 08.2s) | C | 60 | 18.8 |
34928 | 2020-01-06 02:06:04 | MASTER-Kislovodsk | (16h 24m 53.78s , +11d 40m 43.1s) | C | 60 | 18.5 |
34928 | 2020-01-06 02:06:04 | MASTER-Kislovodsk | (16h 16m 18.34s , +12d 08m 20.1s) | C | 60 | 18.5 |
35063 | 2020-01-06 02:08:18 | MASTER-Kislovodsk | (16h 24m 07.57s , +14d 07m 09.1s) | C | 60 | 18.5 |
35123 | 2020-01-06 02:08:18 | MASTER-Kislovodsk | (16h 24m 07.57s , +14d 07m 09.0s) | C | 180 | 19.1 | Coadd
35063 | 2020-01-06 02:08:18 | MASTER-Kislovodsk | (16h 32m 47.17s , +13d 39m 30.3s) | C | 60 | 18.3 |
35123 | 2020-01-06 02:08:18 | MASTER-Kislovodsk | (16h 32m 47.17s , +13d 39m 30.3s) | C | 180 | 18.7 | Coadd
35155 | 2020-01-06 02:09:50 | MASTER-Kislovodsk | (16h 33m 31.95s , +16d 07m 23.1s) | C | 60 | 18.2 |
35155 | 2020-01-06 02:09:50 | MASTER-Kislovodsk | (16h 42m 16.26s , +15d 39m 41.5s) | C | 60 | 18.2 |
35247 | 2020-01-06 02:11:23 | MASTER-Kislovodsk | (16h 18m 09.97s , +09d 41m 37.1s) | C | 60 | 18.4 |
35247 | 2020-01-06 02:11:23 | MASTER-Kislovodsk | (16h 09m 37.56s , +10d 09m 14.3s) | C | 60 | 18.5 |
35392 | 2020-01-06 02:13:47 | MASTER-Kislovodsk | (16h 16m 15.11s , +12d 07m 32.9s) | C | 60 | 18.4 |
35392 | 2020-01-06 02:13:47 | MASTER-Kislovodsk | (16h 24m 51.11s , +11d 39m 54.0s) | C | 60 | 18.3 |
35486 | 2020-01-06 02:15:21 | MASTER-Kislovodsk | (16h 24m 13.74s , +14d 08m 49.3s) | C | 60 | 18.4 |
35486 | 2020-01-06 02:15:21 | MASTER-Kislovodsk | (16h 32m 53.87s , +13d 41m 09.7s) | C | 60 | 18.0 |
35577 | 2020-01-06 02:16:53 | MASTER-Kislovodsk | (16h 24m 07.60s , +14d 08m 19.5s) | C | 60 | 18.4 |
35577 | 2020-01-06 02:16:53 | MASTER-Kislovodsk | (16h 32m 47.86s , +13d 40m 39.9s) | C | 60 | 18.0 |
35679 | 2020-01-06 02:18:35 | MASTER-Kislovodsk | (16h 24m 09.74s , +14d 09m 22.8s) | C | 60 | 18.5 |
35679 | 2020-01-06 02:18:35 | MASTER-Kislovodsk | (16h 32m 50.22s , +13d 41m 44.1s) | C | 60 | 18.0 |
35772 | 2020-01-06 02:20:08 | MASTER-Kislovodsk | (16h 42m 17.00s , +15d 40m 28.8s) | C | 60 | 18.0 |
35772 | 2020-01-06 02:20:08 | MASTER-Kislovodsk | (16h 33m 31.83s , +16d 08m 08.8s) | C | 60 | 18.1 |
35870 | 2020-01-06 02:21:45 | MASTER-Kislovodsk | (16h 28m 50.77s , +07d 39m 58.1s) | C | 60 | 18.3 |
35870 | 2020-01-06 02:21:46 | MASTER-Kislovodsk | (16h 20m 21.77s , +08d 07m 37.9s) | C | 60 | 18.3 |
35963 | 2020-01-06 02:23:18 | MASTER-Kislovodsk | (16h 40m 44.00s , +14d 07m 11.7s) | C | 60 | 18.1 |
35963 | 2020-01-06 02:23:18 | MASTER-Kislovodsk | (16h 49m 23.44s , +13d 39m 29.9s) | C | 60 | 18.3 |
36061 | 2020-01-06 02:24:56 | MASTER-Kislovodsk | (16h 16m 11.04s , +06d 09m 40.9s) | C | 60 | 18.2 |
36064 | 2020-01-06 02:25:00 | MASTER-Kislovodsk | (16h 24m 38.03s , +05d 42m 02.6s) | C | 60 | 18.3 |
36174 | 2020-01-06 02:26:49 | MASTER-Kislovodsk | (16h 11m 22.31s , +02d 08m 32.2s) | C | 60 | 18.2 |
36174 | 2020-01-06 02:26:49 | MASTER-Kislovodsk | (16h 19m 46.23s , +01d 40m 51.8s) | C | 60 | 18.3 |
36266 | 2020-01-06 02:28:21 | MASTER-Kislovodsk | (16h 20m 27.48s , +08d 09m 33.2s) | C | 60 | 18.3 |
36266 | 2020-01-06 02:28:21 | MASTER-Kislovodsk | (16h 28m 57.01s , +07d 41m 54.4s) | C | 60 | 18.3 |
36434 | 2020-01-06 02:31:09 | MASTER-Kislovodsk | (16h 40m 36.71s , +14d 08m 16.4s) | C | 60 | 18.3 |
36434 | 2020-01-06 02:31:09 | MASTER-Kislovodsk | (16h 49m 16.86s , +13d 40m 36.9s) | C | 60 | 18.4 |
36533 | 2020-01-06 02:32:49 | MASTER-IAC | (07h 59m 33.97s , +20d 04m 11.4s) | C | 60 | 18.6 |
36593 | 2020-01-06 02:32:49 | MASTER-IAC | (07h 59m 33.97s , +20d 04m 11.4s) | C | 180 | 19.4 | Coadd
36533 | 2020-01-06 02:32:49 | MASTER-IAC | (07h 50m 50.67s , +20d 07m 51.3s) | C | 60 | 18.5 |
36593 | 2020-01-06 02:32:49 | MASTER-IAC | (07h 50m 50.67s , +20d 07m 51.4s) | C | 180 | 19.3 | Coadd
36537 | 2020-01-06 02:32:53 | MASTER-Kislovodsk | (16h 16m 08.16s , +06d 10m 04.4s) | C | 60 | 18.4 |
36537 | 2020-01-06 02:32:53 | MASTER-Kislovodsk | (16h 24m 35.77s , +05d 42m 27.4s) | C | 60 | 18.1 |
36630 | 2020-01-06 02:34:25 | MASTER-Kislovodsk | (16h 11m 25.11s , +02d 09m 19.4s) | C | 60 | 18.0 |
36630 | 2020-01-06 02:34:25 | MASTER-Kislovodsk | (16h 19m 49.67s , +01d 41m 41.1s) | C | 60 | 17.8 |
36668 | 2020-01-06 02:35:03 | MASTER-IAC | (07h 50m 55.60s , +20d 06m 53.2s) | C | 60 | 18.5 |
36668 | 2020-01-06 02:35:04 | MASTER-IAC | (07h 59m 38.95s , +20d 03m 13.2s) | C | 60 | 18.6 |
36802 | 2020-01-06 02:37:18 | MASTER-IAC | (07h 59m 33.83s , +20d 02m 13.6s) | C | 60 | 18.6 |
36802 | 2020-01-06 02:37:18 | MASTER-IAC | (07h 50m 50.46s , +20d 05m 52.9s) | C | 60 | 18.4 |
37455 | 2020-01-06 02:48:11 | MASTER-IAC | (07h 45m 14.79s , +18d 05m 36.4s) | C | 60 | 18.5 |
37515 | 2020-01-06 02:48:11 | MASTER-IAC | (07h 45m 14.79s , +18d 05m 36.4s) | C | 180 | 19.4 | Coadd
37455 | 2020-01-06 02:48:11 | MASTER-IAC | (07h 53m 51.38s , +18d 01m 56.7s) | C | 60 | 18.8 |
37515 | 2020-01-06 02:48:11 | MASTER-IAC | (07h 53m 51.38s , +18d 01m 56.7s) | C | 180 | 19.5 | Coadd
37593 | 2020-01-06 02:50:28 | MASTER-IAC | (07h 45m 17.82s , +18d 07m 22.2s) | C | 60 | 18.4 |
37593 | 2020-01-06 02:50:28 | MASTER-IAC | (07h 53m 54.39s , +18d 03m 43.1s) | C | 60 | 18.7 |
37723 | 2020-01-06 02:52:38 | MASTER-IAC | (07h 53m 48.09s , +18d 02m 54.1s) | C | 60 | 18.7 |
37724 | 2020-01-06 02:52:39 | MASTER-IAC | (07h 45m 11.61s , +18d 06m 33.1s) | C | 60 | 18.6 |
37859 | 2020-01-06 02:54:54 | MASTER-IAC | (07h 56m 53.70s , +16d 07m 54.9s) | C | 60 | 18.4 |
37919 | 2020-01-06 02:54:54 | MASTER-IAC | (07h 56m 53.70s , +16d 07m 54.9s) | C | 180 | 19.2 | Coadd
37860 | 2020-01-06 02:54:55 | MASTER-IAC | (08h 05m 24.41s , +16d 04m 15.8s) | C | 60 | 18.8 |
37920 | 2020-01-06 02:54:55 | MASTER-IAC | (08h 05m 24.41s , +16d 04m 15.9s) | C | 180 | 19.5 | Coadd
37994 | 2020-01-06 02:57:10 | MASTER-IAC | (07h 57m 01.01s , +16d 06m 54.6s) | C | 60 | 18.4 |
37996 | 2020-01-06 02:57:12 | MASTER-IAC | (08h 05m 31.69s , +16d 03m 15.2s) | C | 60 | 18.9 |
38125 | 2020-01-06 02:59:20 | MASTER-IAC | (08h 05m 25.72s , +16d 02m 13.9s) | C | 60 | 18.8 |
38125 | 2020-01-06 02:59:20 | MASTER-IAC | (07h 56m 55.18s , +16d 05m 53.2s) | C | 60 | 18.5 |
38227 | 2020-01-06 03:01:02 | MASTER-Kislovodsk | (16h 20m 20.74s , +08d 10m 52.4s) | C | 60 | 18.3 |
38227 | 2020-01-06 03:01:02 | MASTER-Kislovodsk | (16h 28m 53.23s , +07d 43m 16.2s) | C | 60 | 18.7 |
38321 | 2020-01-06 03:02:37 | MASTER-Kislovodsk | (16h 20m 26.61s , +08d 09m 49.8s) | C | 60 | 18.6 |
38321 | 2020-01-06 03:02:37 | MASTER-Kislovodsk | (16h 28m 59.08s , +07d 42m 13.0s) | C | 60 | 18.8 |
38474 | 2020-01-06 03:05:09 | MASTER-Kislovodsk | (16h 40m 38.08s , +14d 08m 16.0s) | C | 60 | 18.5 |
38474 | 2020-01-06 03:05:09 | MASTER-Kislovodsk | (16h 49m 20.99s , +13d 40m 37.6s) | C | 60 | 18.7 |
38576 | 2020-01-06 03:06:51 | MASTER-Kislovodsk | (16h 16m 14.51s , +06d 09m 09.9s) | C | 60 | 18.5 |
38576 | 2020-01-06 03:06:51 | MASTER-Kislovodsk | (16h 24m 44.68s , +05d 41m 34.8s) | C | 60 | 18.7 |
38667 | 2020-01-06 03:08:23 | MASTER-Kislovodsk | (16h 19m 49.20s , +01d 43m 08.4s) | C | 60 | 18.6 |
38667 | 2020-01-06 03:08:23 | MASTER-Kislovodsk | (16h 11m 22.25s , +02d 10m 46.3s) | C | 60 | 18.4 |
38759 | 2020-01-06 03:09:54 | MASTER-Kislovodsk | (15h 54m 45.25s , +00d 09m 34.2s) | C | 60 | 18.6 |
38819 | 2020-01-06 03:09:54 | MASTER-Kislovodsk | (15h 54m 45.24s , +00d 09m 34.3s) | C | 180 | 19.0 | Coadd
38759 | 2020-01-06 03:09:54 | MASTER-Kislovodsk | (16h 03m 12.55s , -00d 18m 00.2s) | C | 60 | 18.9 |
38850 | 2020-01-06 03:11:25 | MASTER-Kislovodsk | (16h 10m 47.95s , +00d 11m 14.4s) | C | 60 | 18.3 |
38850 | 2020-01-06 03:11:25 | MASTER-Kislovodsk | (16h 19m 14.24s , -00d 16m 25.7s) | C | 60 | 18.4 |
38947 | 2020-01-06 03:13:03 | MASTER-Kislovodsk | (16h 00m 02.96s , +06d 10m 20.1s) | C | 60 | 18.4 |
38947 | 2020-01-06 03:13:03 | MASTER-Kislovodsk | (16h 08m 34.53s , +05d 42m 49.5s) | C | 60 | 18.5 |
39043 | 2020-01-06 03:14:38 | MASTER-Kislovodsk | (16h 13m 08.45s , +04d 11m 08.9s) | C | 60 | 18.2 |
39043 | 2020-01-06 03:14:38 | MASTER-Kislovodsk | (16h 21m 37.11s , +03d 43m 32.5s) | C | 60 | 18.4 |
39170 | 2020-01-06 03:16:45 | MASTER-Kislovodsk | (15h 54m 48.58s , +00d 10m 39.0s) | C | 60 | 18.2 |
39266 | 2020-01-06 03:18:21 | MASTER-Kislovodsk | (15h 54m 43.50s , +00d 09m 40.3s) | C | 60 | 18.1 |
39266 | 2020-01-06 03:18:21 | MASTER-Kislovodsk | (16h 03m 11.30s , -00d 17m 52.8s) | C | 60 | 18.5 |
39357 | 2020-01-06 03:19:52 | MASTER-Kislovodsk | (16h 03m 16.46s , -00d 17m 30.8s) | C | 60 | 18.2 |
39357 | 2020-01-06 03:19:52 | MASTER-Kislovodsk | (15h 54m 48.51s , +00d 10m 02.8s) | C | 60 | 17.8 |
39450 | 2020-01-06 03:21:25 | MASTER-Kislovodsk | (16h 10m 46.31s , +00d 10m 58.5s) | C | 60 | 17.4 |
39450 | 2020-01-06 03:21:25 | MASTER-Kislovodsk | (16h 19m 13.35s , -00d 16m 40.2s) | C | 60 | 17.8 |
39541 | 2020-01-06 03:22:57 | MASTER-Kislovodsk | (16h 10m 46.36s , +00d 09m 31.7s) | C | 60 | 17.5 |
39647 | 2020-01-06 03:24:43 | MASTER-Kislovodsk | (16h 10m 48.23s , +00d 11m 02.3s) | C | 60 | 17.6 |
39647 | 2020-01-06 03:24:43 | MASTER-Kislovodsk | (16h 19m 15.49s , -00d 16m 34.9s) | C | 60 | 17.8 |
39749 | 2020-01-06 03:26:25 | MASTER-Kislovodsk | (16h 00m 02.89s , +06d 10m 31.8s) | C | 60 | 17.9 |
39809 | 2020-01-06 03:26:25 | MASTER-Kislovodsk | (16h 00m 02.89s , +06d 10m 32.1s) | C | 180 | 18.7 | Coadd
39749 | 2020-01-06 03:26:25 | MASTER-Kislovodsk | (16h 08m 35.38s , +05d 43m 04.8s) | C | 60 | 18.0 |
39809 | 2020-01-06 03:26:25 | MASTER-Kislovodsk | (16h 08m 35.39s , +05d 43m 04.8s) | C | 180 | 18.7 | Coadd
39841 | 2020-01-06 03:27:57 | MASTER-Kislovodsk | (16h 00m 03.96s , +06d 11m 33.5s) | C | 60 | 18.0 |
39841 | 2020-01-06 03:27:57 | MASTER-Kislovodsk | (16h 08m 36.58s , +05d 44m 07.5s) | C | 60 | 18.0 |
39945 | 2020-01-06 03:29:40 | MASTER-Kislovodsk | (16h 08m 42.78s , +05d 43m 09.8s) | C | 60 | 18.0 |
40037 | 2020-01-06 03:31:13 | MASTER-Kislovodsk | (16h 13m 08.67s , +04d 09m 24.4s) | C | 60 | 17.8 |
40037 | 2020-01-06 03:31:13 | MASTER-Kislovodsk | (16h 21m 38.49s , +03d 41m 54.8s) | C | 60 | 17.8 |
40133 | 2020-01-06 03:32:48 | MASTER-Kislovodsk | (15h 54m 49.17s , +00d 10m 21.6s) | C | 60 | 18.0 |
40133 | 2020-01-06 03:32:48 | MASTER-Kislovodsk | (16h 03m 18.01s , -00d 17m 05.8s) | C | 60 | 18.0 |
40236 | 2020-01-06 03:34:31 | MASTER-Kislovodsk | (16h 10m 46.51s , +00d 11m 29.1s) | C | 60 | 17.6 |
40236 | 2020-01-06 03:34:31 | MASTER-Kislovodsk | (16h 19m 14.40s , -00d 16m 03.1s) | C | 60 | 17.6 |
40328 | 2020-01-06 03:36:04 | MASTER-Kislovodsk | (16h 00m 05.98s , +06d 09m 53.5s) | C | 60 | 17.8 |
40328 | 2020-01-06 03:36:04 | MASTER-Kislovodsk | (16h 08m 39.12s , +05d 42m 29.9s) | C | 60 | 17.7 |
40427 | 2020-01-06 03:37:43 | MASTER-Kislovodsk | (16h 13m 14.39s , +04d 11m 09.9s) | C | 60 | 17.5 |
40427 | 2020-01-06 03:37:43 | MASTER-Kislovodsk | (16h 21m 44.71s , +03d 43m 41.5s) | C | 60 | 17.6 |
81088 | 2020-01-06 14:55:24 | MASTER-Kislovodsk | (19h 12m 01.79s , +04d 56m 29.8s) | C | 60 | 15.5 |
81088 | 2020-01-06 14:55:24 | MASTER-Kislovodsk | (19h 09m 29.90s , +05d 22m 35.9s) | C | 60 | 15.6 |
87907 | 2020-01-06 16:49:03 | MASTER-Tunka | (07h 52m 49.70s , +23d 56m 42.3s) | C | 60 | 18.3 |
88000 | 2020-01-06 16:50:36 | MASTER-Tunka | (08h 18m 24.30s , +25d 56m 02.6s) | C | 60 | 18.3 |
94710 | 2020-01-06 18:42:10 | MASTER-Kislovodsk | (05h 14m 06.11s , +12d 15m 51.4s) | C | 90 | 17.0 |
94710 | 2020-01-06 18:42:10 | MASTER-Kislovodsk | (05h 22m 48.50s , +11d 48m 44.6s) | C | 90 | 17.3 |
94835 | 2020-01-06 18:42:10 | MASTER-Kislovodsk | (05h 22m 48.50s , +11d 48m 44.5s) | C | 340 | 18.3 | Coadd
94713 | 2020-01-06 18:42:13 | MASTER-SAAO | (05h 18m 49.10s , +12d 11m 33.3s) | C | 90 | 17.4 |
94831 | 2020-01-06 18:44:01 | MASTER-Kislovodsk | (05h 13m 58.35s , +12d 16m 39.1s) | C | 110 | 17.3 |
94831 | 2020-01-06 18:44:01 | MASTER-Kislovodsk | (05h 22m 46.99s , +11d 49m 42.3s) | C | 110 | 17.9 |
94834 | 2020-01-06 18:44:05 | MASTER-SAAO | (05h 18m 52.95s , +12d 11m 36.1s) | C | 110 | 17.2 |
94976 | 2020-01-06 18:46:12 | MASTER-Kislovodsk | (05h 14m 03.78s , +12d 15m 31.0s) | C | 140 | 17.2 |
94976 | 2020-01-06 18:46:12 | MASTER-Kislovodsk | (05h 22m 53.38s , +11d 48m 37.3s) | C | 140 | 17.9 |
94981 | 2020-01-06 18:46:16 | MASTER-SAAO | (05h 18m 45.88s , +12d 10m 37.3s) | C | 140 | 17.7 |
95158 | 2020-01-06 18:48:58 | MASTER-SAAO | (05h 18m 52.30s , +12d 10m 58.6s) | C | 170 | 17.8 |
95348 | 2020-01-06 18:52:04 | MASTER-Kislovodsk | (05h 37m 56.66s , +01d 23m 14.3s) | C | 180 | 17.6 |
95348 | 2020-01-06 18:52:04 | MASTER-Kislovodsk | (05h 46m 31.36s , +00d 56m 25.5s) | C | 180 | 18.3 |
Filter C is a clear (unfiltred) band.
The observation and reduction will continue.
The message may be cited.
GCN Circular 26645
Subject
LIGO/Virgo S200105ae: Upper limits from Fermi-GBM Observations
Date
2020-01-06T20:30:43Z (6 years ago)
From
Peter Veres at UAH <veresp@gmail.com>
P. Veres (UAH) reports on behalf of the Fermi-GBM Team and the
GBM-LIGO/Virgo group
For S200105ae and using the latest BAYESTAR skymap, Fermi-GBM was observing
82.3% of the localization probability at event time.
There was no Fermi-GBM onboard trigger around the event time of the
LIGO/Virgo detection of GW trigger S200105ae (GCN Circ. 26640). An
automated, blind search for short gamma-ray bursts below the onboard
triggering threshold in Fermi-GBM also identified no counterpart
candidates. The GBM targeted search, the most sensitive, coherent search
for GRB-like signals, was run from +/-30 s around merger time, and also
identified no counterpart candidates.
Part of the LVC localization region is behind the Earth for Fermi, located
at RA=255.8, Dec=22.4 with a radius of 67.4 degrees. We therefore set upper
limits on impulsive gamma-ray emission for the LVC localization region
visible to Fermi at merger time. Using the representative soft, normal, and
hard GRB-like templates described in arXiv:1612.02395, we set the following
3 sigma flux upper limits over 10-1000 keV, weighted by GW localization
probability (in units of 10^-7 erg/s/cm^2):
Timescale Soft Normal Hard
------------------------------------
0.128 s: 4.0 6.3 11
1.024 s: 1.1 1.8 4.4
8.192 s: 0.40 0.63 1.3
Assuming the median luminosity distance of 265 Mpc from the GW detection,
we estimate the following intrinsic luminosity upper limits over the 1
keV-10 MeV energy range (in units of 10^48 erg/s):
Timescale Soft Normal Hard
------------------------------------
0.128s: 5.1 7.5 21
1.024s: 1.4 2.1 8.6
8.192s: 0.51 0.75 2.5
GCN Circular 26644
Subject
LIGO/Virgo S200105ae: No counterpart candidates in INTEGRAL SPI-ACS prompt observation
Date
2020-01-06T20:05:22Z (6 years ago)
From
Maeve Doyle at U College Dublin, Ireland <maeve.doyle.1@ucdconnect.ie>
Maeve Doyle, Antonio Martin-Carrillo (UCD, Dublin)
V. Savchenko, C. Ferrigno (ISDC/UniGE, Switzerland)
J. Rodi (IAPS-Roma, Italy)
A. Coleiro (APC, France)
S. Mereghetti (INAF IASF-Milano, Italy)
on behalf of the INTEGRAL multi-messenger collaboration:
https://www.astro.unige.ch/cdci/integral-multimessenger-collaboration
Using INTEGRAL/SPI-ACS realtime data (following [1]) we have performed
a search for a prompt gamma-ray counterpart of S200105ae (GCN 26640).
At the time of the event (2020-01-05 16:24:26 UTC, hereafter T0),
INTEGRAL was operating in nominal mode. The peak of the event
localization probability was at an angle of 83 deg with respect to the
spacecraft pointing axis. This orientation implies strongly suppressed
(15% of optimal) response of ISGRI, strongly suppressed (35% of
optimal) response of IBIS/Veto, and near-optimal (90% of optimal)
response of SPI-ACS.
The background within +/-300 seconds around the event was very stable
(excess variance 1.1).
We have performed a search for any impulsive events in INTEGRAL SPI-
ACS (as described in [2]) data.
We do not detect any significant counterparts and estimate a 3-sigma
upper limit on the 75-2000 keV fluence of 2.2e-07 erg/cm^2 (within the
50% probability containment region of the source localization) for a
burst lasting less than 1 s with a characteristic short GRB spectrum
(an exponentially cut off power law with alpha=-0.5 and Ep=600 keV)
occurring at any time in the interval within 300 s around T0. For a
typical long GRB spectrum (Band function with alpha=-1, beta=-2.5, and
Ep=300 keV), the derived peak flux upper limit is ~1.9e-07 (5.5e-08)
erg/cm^2/s at 1 s (8 s) time scale in 75-2000 keV energy range.
For the mean reported distance 265.0 Mpc this corresponds to the limit
on the total isotropic equivalent energy in 1 s of 1.9e+48 erg for
the short GRB spectrum and for a long GRB spectrum isotropic
equivalent luminosity in 1 s (8 s) of 1.3e+48 erg/s (4.6e+47 erg/s)
We report for completeness and in order of FAP, all excesses
identified in the search region. We find 1 possibly associated
excess:
T-T0 | scale | S/N | luminosity ( x 1e+48 erg/s) | FAP
-1.1 | 2.25 | 3.3 | 19.7 +/- 7.29 +/- 13.8 | 0.0101
6 likely background excesses:
T-T0 | scale | S/N | luminosity ( x 1e+48 erg/s) | FAP
-6.25 | 0.05 | 4.4 | 17.3 +/- 5.03 +/- 12.1 | 0.14
108 | 0.6 | 4.5 | 5.07 +/- 1.42 +/- 3.55 | 0.363
144 | 1.4 | 3.6 | 25.6 +/- 9.26 +/- 17.9 | 0.607
23.4 | 0.2 | 3.6 | 6.98 +/- 2.47 +/- 4.88 | 0.704
-192 | 0.6 | 4.4 | 4.94 +/- 1.42 +/- 3.45 | 0.708
-60.5 | 1.1 | 3.2 | 2.63 +/- 1.04 +/- 1.84 | 0. 866
Note that FAP estimates (especially at timescales above 2s) may be
possibly further affected by enhanced non-stationary local background
noise. This list excludes any excesses for which FAP is close to
unity.
All results quoted are preliminary.
This circular is an official product of the INTEGRAL Multi-Messenger
team.
[1] Savchenko et al. 2017, A&A 603, A46
[2] Savchenko et al. 2012, A&A 541A, 122S
GCN Circular 26643
Subject
LIGO/Virgo S200105ae : no neutrino counterpart candidate in ANTARES search
Date
2020-01-06T19:52:38Z (6 years ago)
From
Thierry Pradier at ANTARES/IPHC/U of Strasbourg <tpradier@km3net.de>
M. Ageron (CPPM/CNRS), B. Baret (APC/CNRS), A. Coleiro (APC/Universite de Paris), M. Colomer (APC/Universite de Paris), D. Dornic (CPPM/CNRS), A. Kouchner (APC/Universite de Paris), T. Pradier (IPHC/Universite de Strasbourg) report on behalf of the ANTARES Collaboration:
Using on-line data from the ANTARES detector, we have performed a follow-up analysis of the
recently reported LIGO/Virgo S200105ae subthreshold event using the 90% contour of the Initial GW_SKYMAP probability
map provided by the GW interferometers (GCN#26640 <https://gcn.gsfc.nasa.gov/gcn3/26640.gcn3>). The ANTARES visibility at the time of the
alert, together with the 50% and 90% contours of the probability map are shown at http://antares.in2p3.fr/GW/S200105ae_Initial.png <http://antares.in2p3.fr/GW/S200105ae_Initial.png>.
Considering the location probability provided by the LIGO/Virgo collaborations, there is a
35.6% chance that the GW emitter was in the ANTARES **upgoing** field of view at the time of
the alert.
No up-going muon neutrino candidate events were recorded in the ANTARES sky during a
+/-500s time-window centered on the time 2020-01-05 16:24:26 and in the 90% contour of the S200105ae
event. The expected number of atmospheric background events in the region visible by ANTARES is
2.43e-03 in the +/- 500s time window. An extended search during +/- 1 hour gives no
up-going muon neutrino coincidence. The expected number of atmospheric background events in the
region visible by ANTARES is 1.75e-02 in this larger time window.
ANTARES is the largest undersea neutrino detector, installed in the Mediterranean Sea, and it is
primarily sensitive to neutrinos in the TeV-PeV energy range. At 10 TeV, the median angular
resolution for muon neutrinos is about 0.5 degrees. In the range 1-100 TeV ANTARES has a
competitive sensitivity to this position in the sky.
GCN Circular 26642
Subject
LIGO/Virgo S200105ae: We have issued GCN Notices to support automated processing
Date
2020-01-06T19:44:14Z (6 years ago)
From
Peter Shawhan at U of Maryland/LSC <pshawhan@umd.edu>
The LIGO Scientific Collaboration and the Virgo Collaboration report:
We initially reported the subthreshold GW compact binary merger
candidate S200105ae in GCN Circular 26640. We have now issued a pair
of GCN Notices (Preliminary and Initial) for this candidate in order
to support users who rely on Notices for getting sky maps and
scheduling observations. These Notices are identical and do not
contain any updated information about the candidate; in particular,
the p_astro and em_bright probabilities in the Notice are from the
initial real-time processing and are not considered accurate, as
explained in Circular 26640.
GCN Circular 26640
Subject
LIGO/Virgo S200105ae: A subthreshold GW compact binary merger candidate
Date
2020-01-06T18:25:26Z (6 years ago)
From
Peter Shawhan at U of Maryland/LSC <pshawhan@umd.edu>
The LIGO Scientific Collaboration and the Virgo Collaboration report:
We identified the compact binary merger candidate S200105ae in data
from LIGO Livingston Observatory (L1) and Virgo Observatory (V1) at
2020-01-05 16:24:26.057 UTC (GPS time: 1262276684.057). The candidate
was found by the GstLAL [1] analysis pipeline. LIGO Hanford
Observatory (H1) was offline at the time.
The signal-to-noise ratio (SNR) was below threshold in V1 so the
candidate was treated as a single-instrument event. The false alarm
rate (FAR) estimated from the L1 trigger, 7.6e-07 Hz -- or about 24
per year -- was above the threshold we normally use for issuing a
public alert. However, after further offline analysis of the
candidate, we believe that its significance is greater than that
calculated in real-time processing. Follow-up observations may
therefore be justified.
The event's properties can be found at this URL:
https://gracedb.ligo.org/superevents/S200105ae
We cannot quantify the probability of this event being astrophysical
at this time. However, if it is astrophysical, it is most consistent
with being a neutron star - black hole (NSBH) event. Under this
assumption, there is strong evidence for the lighter compact object
having a mass < 3 solar masses (HasNS: >99%). Using the masses
and spins inferred from the signal, it is possible but unlikely that the
merger left matter outside the final compact object. (HasRemnant was
estimated as 12% by the initial analysis, but this value is considered
uncertain.)
One sky map is available at this time and can be retrieved from the
GraceDB event page:
* bayestar.fits.gz,0, an initial localization generated by BAYESTAR [2].
No GCN notice has been issued for this candidate.
For the bayestar.fits.gz sky map, the 90% credible region is 7719
deg2, dominated by the L1 antenna response. Marginalized over the
whole sky, the a posteriori luminosity distance estimate is 265 +/- 71
Mpc (a posteriori mean +/- standard deviation).
For further information about analysis methodology and the contents of
this alert, refer to the LIGO/Virgo Public Alerts User Guide
<https://emfollow.docs.ligo.org/userguide/>.
[1] Messick et al. PRD 95, 042001 (2017)
[2] Singer & Price PRD 93, 024013 (2016)