LIGO/Virgo S190512at
GCN Circular 24615
Subject
LIGO/Virgo S190512at: SVOM/GWAC-F60A observations
Date
2019-05-20T22:38:43Z (7 years ago)
From
Xiang-Gao Wang at GuangXi U <wangxg@gxu.edu.cn>
X.G. Wang (GXU), X.H. Han (NAOC), L.P. Xin (NAOC), J.Y. Wei (NAOC), C. Wu (NAOC), D. Turpin (NAOC), N. LEROY (CNRS/LAL), S. ANTIER (CNRS/APC/CNES), L. Huang (NAOC), Y. Xu (NAOC), H.B. Cai (NAOC), J. Wang (NAOC), X.M. Lu (NAOC), Y.L. Qiu (NAOC), J.S. Deng (NAOC), L. Jia (NAOC), S.C. Zou (NAOC), S.F. Liu (NAOC), Q.C. Feng (NAOC), H.L. Li (NAOC), D.W. Xu (NAOC), Y.J. Xiao (NAOC), W.L. Dong (NAOC), Y.T. Zheng (NAOC), P. P. Zhang (NAOC), R.S. Zhang (NAOC), E.W. Liang (GXU), Z.G. Dai (NJU), X.Y. Wang (NJU), Y.G. Yang (HBNU), J.R. Mao (YNAO), B. Cordier (CEA/AIM), S. Basa (CNRS/LAM), J.L. Atteia (UPS/IRAP),D. Gotz (CEA/AIM), A. Claret (CEA/AIM), C. Lachaud (CNRS/APC), R. Duque (CNRS/IAP), N. Dagoneau (CEA/AIM) S.N. Zhang (IHEP), B.B. Wu (IHEP), report on behalf of the SVOM Ground Follow-up Group:
We observed the LIGO/Virgo trigger S190512at (GCN #24503) with GWAC-F60A. Two 60cm GWAC-F60(A/B) are operated by Guangxi University and NAOC, CAS, at Xinglong Observatory. China. They are equipped with Standard
Johnson filters and 2Kx2K Andor CCD (FOV~18x18 arcmin). GWAC-F60(A/B) are used for galaxy-targeted observations. The galaxies are selected from the GLADE catalog (Version 2.3, Dalya et al. 2018) in the probability skymap of GW event. All these galaxies were observed in clear band.
The first image was taken ~19.7 hours after the event trigger time T0=2019-05-12 18:07:14 UTC. No credible new source was detected in our pipeline. A total number of 43 galaxies were observed. The coordinates (J2000) of galaxies, the observation time, the limit magnitude (3sigma) and telescopes are listed below:
No. RA DEC Start-obs(UTC) Limit (R) Telescope
1 14:36:42.001 +09:55:45.26 2019-05-13T12:48:33.079 19.59 F60A
2 14:38:47.519 +10:07:17.04 2019-05-13T13:59:47.864 18.46 F60A
3 15:06:45.119 -01:13:54.23 2019-05-13T12:58:55.753 19.10 F60A
4 14:44:29.281 +04:44:40.85 2019-05-13T12:37:01.477 19.24 F60A
5 15:11:41.039 -03:53:54.74 2019-05-13T15:18:18.559 19.27 F60A
6 14:41:26.880 +09:15:27.54 2019-05-13T19:34:49.642 18.24 F60A
7 14:33:06.001 +09:40:09.84 2019-05-13T12:42:46.387 19.24 F60A
8 14:52:11.521 +02:18:38.34 2019-05-13T17:38:24.972 19.25 F60A
9 14:47:03.599 +05:35:25.04 2019-05-13T14:06:27.778 19.76 F60A
10 14:41:04.081 +07:42:45.22 2019-05-13T15:52:57.033 19.37 F60A
11 14:34:30.241 +10:52:33.96 2019-05-13T16:22:25.302 19.01 F60A
12 14:59:57.599 -01:27:03.74 2019-05-13T14:41:19.946 19.76 F60A
13 15:09:39.121 -03:10:39.29 2019-05-13T13:04:32.492 18.76 F60A
14 15:17:08.401 -07:34:10.88 2019-05-13T16:27:42.187 18.91 F60A
15 15:10:43.680 -04:56:05.24 2019-05-13T18:20:32.299 19.40 F60A
16 15:05:41.039 -04:53:12.30 2019-05-13T14:23:45.297 19.54 F60A
17 15:07:06.960 -04:31:52.07 2019-05-13T14:12:11.179 19.36 F60A
18 14:59:18.960 +00:44:08.88 2019-05-13T15:30:56.668 19.28 F60A
19 14:41:17.279 +07:47:49.56 2019-05-13T19:12:41.070 19.03 F60A
20 14:43:29.521 +07:54:22.00 2019-05-13T18:29:10.610 19.43 F60A
21 14:36:18.479 +10:36:02.16 2019-05-13T14:35:29.636 19.70 F60A
22 14:45:29.761 +07:48:44.10 2019-05-13T18:43:34.454 19.87 F60A
23 15:05:42.961 -03:49:32.30 2019-05-13T18:07:18.669 19.34 F60A
24 15:20:03.599 -07:42:09.43 2019-05-13T14:29:34.082 19.04 F60A
25 15:24:07.920 -08:08:10.64 2019-05-13T14:17:57.171 19.00 F60A
26 15:29:28.799 -11:21:48.96 2019-05-13T15:24:50.133 19.28 F60A
27 14:38:47.519 +10:07:17.04 2019-05-13T13:59:47.864 18.46 F60A
28 15:11:41.039 -03:53:54.74 2019-05-13T15:18:18.559 19.27 F60A
29 14:41:26.880 +09:15:27.54 2019-05-13T19:34:49.642 18.24 F60A
30 14:52:11.521 +02:18:38.34 2019-05-13T17:38:24.972 19.25 F60A
31 14:47:03.599 +05:35:25.04 2019-05-13T14:06:27.778 19.76 F60A
32 14:41:04.081 +07:42:45.22 2019-05-13T15:52:57.033 19.37 F60A
33 14:34:30.241 +10:52:33.96 2019-05-13T16:22:25.302 19.01 F60A
34 14:59:57.599 -01:27:03.74 2019-05-13T14:41:19.946 19.76 F60A
35 15:17:08.401 -07:34:10.88 2019-05-13T16:27:42.187 18.91 F60A
36 15:10:43.680 -04:56:05.24 2019-05-13T18:20:32.299 19.40 F60A
37 15:05:41.039 -04:53:12.30 2019-05-13T14:23:45.297 19.54 F60A
38 15:07:06.960 -04:31:52.07 2019-05-13T14:12:11.179 19.36 F60A
39 14:59:18.960 +00:44:08.88 2019-05-13T15:30:56.668 19.28 F60A
40 14:41:17.279 +07:47:49.56 2019-05-13T19:12:41.070 19.03 F60A
41 14:43:29.521 +07:54:22.00 2019-05-13T18:29:10.610 19.43 F60A
42 14:36:18.479 +10:36:02.16 2019-05-13T14:35:29.636 19.70 F60A
43 14:45:29.761 +07:48:44.10 2019-05-13T18:43:34.454 19.87 F60A
This circular is citable.
GCN Circular 24584
Subject
LIGO/Virgo S190512at: Updated sky localization
Date
2019-05-17T17:42:03Z (7 years ago)
From
Deep Chatterjee at University of Wisconsin, Milwaukee <deep@uwm.edu>
The LIGO Scientific Collaboration and the Virgo Collaboration report:
We have re-analyzed LIGO and Virgo data around the time of the compact
binary coalescence (CBC) candidate S190512at (GCN 24503). Parameter
estimation has been performed using LALInference [1] and a new sky map,
LALInference.fits.gz, distributed via GCN Notice, is available for
retrieval from the GraceDB event page:
https://gracedb.ligo.org/superevents/S190512at
The preferred skymap at this time is LALInference.fits.gz. For the
LALInference.fits.gz skymap, the 90% credible region is 252 deg2.
Marginalized over the whole sky, the a posteriori luminosity distance
estimate is 1388 +/- 322 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] Veitch et al. PRD 91, 042003 (2015)
GCN Circular 24531
Subject
LIGO/Virgo S190512at: CALET Observations
Date
2019-05-14T03:46:33Z (7 years ago)
From
Yuta Kawakubo at Louisiana State U./CALET <kawakubo1@lsu.edu>
A. Yoshida, T. Sakamoto, V. Pal'shin, S. Sugita (AGU),
Y. Kawakubo (LSU), K. Yamaoka (Nagoya U),
S. Nakahira (RIKEN), Y. Asaoka, S. Ozawa,
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 S190512at T0=2019-05-12 18:07:14.422UT (The LIGO
Scientific Collaboration and Virgo Collaboration, GCN Circ. 24503).
No CGBM on-board trigger occurred around the event time. Based
on the LIGO-Virgo localization sky map, most of the part of the high
probability area was inside of the field-of-view of SGM. The
summed LIGO probabilities inside the HXM and the SGM field of
view are 19% and 95% (and 0% credible region of the initial
localization map were Earth-occulted). The HXM and SGM field of
views were centered at RA=205.5 deg, Dec = 44.8 deg and
RA=214.9 deg, Dec=37.7 deg at T0.
Based on the analysis of the light curve data with 0.125 sec
time resolution from T0-60 sec to T0+60 sec, we found no
significant excess around the trigger time in either the
HXM (7-3000 keV) or the SGM (40 keV - 28 MeV) data.
The CALET Calorimeter (CAL) was operating in high energy trigger mode
at the trigger time of S190512at. Using 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.
The 90% upper limit of CAL is 1.9x10^-5 erg/cm2/s (10-100 GeV) when
the summed LIGO-Virgo probability reaches 10%.
The CAL FOV was centered at RA=214.9 deg, Dec=37.7 deg at T0.
GCN Circular 24518
Subject
LIGO/Virgo S190512at: Swift/BAT Counterpart Search
Date
2019-05-13T15:22:16Z (7 years ago)
From
Amy Lien at GSFC <amy.y.lien@nasa.gov>
T. Sakamoto (AGU), S. D. Barthelmy (NASA/GSFC),
A. Y. Lien (GSFC/UMBC), D. M. Palmer (LANL),
A. A. Breeveld (MSSL-UCL), A. P. Beardmore (U. Leicester),
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(ASDC), S. Emery (UCL-MSSL),
P. A. Evans (U. Leicester), P. Giommi (ASI), C. Gronwall (PSU),
D. Hartmann (Clemson U.), J. A. Kennea (PSU), H. A. Krimm (NSF),
N. P. M. Kuin (UCL-MSSL), F. E. Marshall (NASA/GSFC),
A. Melandri (INAF-OAB), B. Mingo (U. Leicester), J. A. Nousek (PSU),
S. R. Oates (Uni. of Warwick), P. T. O'Brien (U. Leicester),
J. P. Osborne (U. Leicester), C. Pagani (U. Leicester),
K. L. Page (U.Leicester), M. Perri (ASDC),
J. L. Racusin (NASA/GSFC), B. Sbarufatti (INAF-OAB/PSU),
M. H. Siegel (PSU), G. Tagliaferri (INAF-OAB), A. Tohuvavohu (PSU),
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 S190512at (LIGO/VIRGO Collaboration GCN Circ. 24503),
where T0 is the LVC trigger time (2019-05-12T18:07:14.422 UTC).
The center of the BAT FOV at T0 is
RA = 92.704 deg,
DEC = -30.367 deg,
ROLL = 302.899 deg.
The BAT Field of View (>10% partial coding) covers 0.00% of the integrated
LVC localization probability, and 0.00% of the galaxy convolved
probability (Evans et al. 2016).
Within T0 +/- 100 s, no significant 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. 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 ~ 7.12 x 10^-8 erg/s/cm^2.
No event data are available at this point.
BAT retains decreased, but significant, sensitivity to rate increases for
gamma-ray events outside of its FOV. About 94.73% 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/S190512at/web/source.html
GCN Circular 24516
Subject
LIGO/Virgo S190512at: ANTARES neutrino search
Date
2019-05-13T10:16:14Z (7 years ago)
From
Damien Dornic at CPPM,France <dornic@cppm.in2p3.fr>
M. Ageron (CPPM/CNRS), B. Baret (APC/CNRS), A. Coleiro (APC/Universite Paris Diderot), M. Colomer (APC/Universite Paris Diderot)), D. Dornic (CPPM/CNRS), A. Kouchner (APC/Universite Paris Diderot), 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 S190512at event using the 90% contour of the initial bayestar probability map provided by the GW interferometers (GCN#24503). The ANTARES visibility at the time of the alert, together with the 50% and 90% contours of the probability map are shown in https://www.cppm.in2p3.fr/~dornic/events_runo3/S190512at.png <https://www.cppm.in2p3.fr/~dornic/events_runo3/S190512at.png>. Considering the location probability provided by the LIGO/Virgo collaborations, there is a 83% 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 (2019-05-12 18:07:14 UT) and in the 90% contour of the S190512at event. The expected number of atmospheric background events in the region visible by ANTARES is 1.6e-4 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 1.2e-3 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 24515
Subject
LIGO/Virgo S190512at: Fermi-LAT search for a high-energy gamma-ray counterpart
Date
2019-05-13T10:01:22Z (7 years ago)
From
Magnus Axelsson at Stockholm U. <magaxe@kth.se>
M. Axelsson (KTH and Stockholm Univ.), D. Kocevski (NASA/MSFC) and F. Dirirsa (Univ. of Johannesburg) report on behalf of the Fermi-LAT collaboration:
We have searched data collected by the Fermi Large Area Telescope (LAT) on May 12, 2019, for possible high-energy (E > 100 MeV) gamma-ray emission in spatial/temporal coincidence with the LIGO/Virgo trigger S190512at (GCN 24503).
We define "instantaneous coverage" as the integral over the region of the LIGO probability map that is within the LAT field of view at a given a time, and "cumulative coverage" as the integral of the instantaneous coverage over time.
At the time of the trigger (T0 = 2019-05-12 18:07:14.422 UTC), the entire LIGO probability region was either obscured by the Earth or outside the Fermi-LAT field of view. Coverage of the region started around T0 + 1000 s, and reached 100% cumulative coverage at approximately T0 + 7 ks.
We performed a search for a transient counterpart within the observed region of the 90% contour of the LIGO map in a fixed time window from T0 + 1 ks to T0 + 10 ks. No significant new sources were found.
We also performed a search which adapted the time interval of the analysis to the exposure of each region of the sky, and no additional excesses were found.
Energy flux upper bounds for the fixed time interval between 100 MeV and 100 GeV for this search vary between 2.5e-10 and 3.5e-9 [erg/cm^2/s].
The Fermi-LAT point of contact for this event is Feraol Dirirsa (fdirirsa@uj.ac.za<mailto:fdirirsa@uj.ac.za>).
The Fermi-LAT is a pair conversion telescope designed to cover the energy band from 20 MeV to greater than 300 GeV. It is the product of an international collaboration between NASA and DOE in the U.S. and many scientific institutions across France, Italy, Japan and Sweden.
GCN Circular 24514
Subject
LIGO/Virgo S190512at: MAXI/GSC Observations
Date
2019-05-13T01:40:49Z (7 years ago)
From
Mutsumi Sugizaki at Tokyo Tech./MAXI <sugizaki.mutsumi@gmail.com>
S. Sugita, M. Serino (AGU), H. Negoro (Nihon U.),
M. Sugizaki, N. Kawai (Tokyo Tech),
M. Nakajima, W. Maruyama, M. Aoki, K. Kobayashi (Nihon U.),
S. Nakahira, T. Mihara, 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. Ueno, H. Tomida, M. Ishikawa, Y. Sugawara, N. Isobe, 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 (Miyazaki U.),
T. Kawamuro (NAOJ), K. Yamaoka (Nagoya U.), Y. Kawakubo (LSU)
report on behalf of the MAXI team:
We examined MAXI/GSC all-sky X-ray images (2-20 keV)
after the LVC trigger S190512at at 2019-05-12 18:07:14.422 UTC (GCN 24503).
At the trigger time of S190512at, the high-voltage of MAXI/GSC was on,
but the FOV was out of the 90% credible region of the bayestar skymap.
The first one-orbit (92 min) scan observation with GSC after the event
covered 90%
of the 90% credible region of the bayestar skymap from 18:33:5 to
19:38:1 UTC (T0+1551 to T0+5457 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 24513
Subject
LIGO/Virgo S190512at: Fermi GBM Observations
Date
2019-05-13T01:19:59Z (7 years ago)
From
Suraj Poolakkil at UAH <sp0076@uah.edu>
S. Poolakkil (UAH) and C.M. Hui (NASA/MSFC) report on behalf of the
Fermi-GBM Team
and the GBM-LIGO/Virgo group:
For S190512at, and using the updated BAYESTAR skymap, Fermi-GBM was
observing 34.7% 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 S190512at (GCN 24503). 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 = 308.1 and Dec = -3.6 with a radius of 67.2 degrees.
We therefore set upper limits on impulsive gamma-ray emission. Using the
representative soft, normal, and hard GRB-like spectral templates described
in arXiv:1612.02395, we set the following 3 sigma flux upper limits over
10-1000 keV,
weighted by the remaining visible GW localization probability (in units of
erg/s/cm^2):
Timescale soft norm hard
-----------------------------------------------
0.128 s: 2.4e-07 4.3e-07 1.0e-06
1.024 s: 5.3e-08 1.1e-07 2.5e-07
8.192 s: 2.3e-08 2.3e-08 8.0e-08
Assuming the median luminosity distance of ~1331 Mpc from the GW detection,
we
estimate intrinsic luminosity upper limits of (0.8-7.9)E49 erg/s for the
soft template, (0.7-12.7)E49 erg/s for the normal template, and
(3.9-49.3)E49 erg/s
for the hard template over the 1 keV-10 MeV energy range.
GCN Circular 24512
Subject
LIGO/Virgo S190512at Global MASTER-Net observations report
Date
2019-05-13T00:54:15Z (7 years ago)
From
Vladimir Lipunov at Moscow State U/Krylov Obs <lipunov@xray.sai.msu.ru>
V. Lipunov, E. Gorbovskoy, V.Kornilov, D.Kuvshinov, N.Tyurina, P.Balanutsa,
A.Kuznetsov, V.V.Chazov, D. Vlasenko
(Lomonosov Moscow State University,
Sternberg Astronomical Institute, Moscow State University)
A. Tlatov, V.Senik, A.V. Parhomenko, D. Dormidontov
(Kislovodsk Solar Station of the Pulkovo Observatory)
K. Ivanov, O. Gres, N.M. Budnev, S. Yazev, O. Chuvalaev, V. Poleshchuk
(Irkutsk State University)
V. Yurkov, A. Gabovich, Yu. Sergienko
(Blagoveschensk Educational State University, Blagoveschensk)
R. Podesta, Carlos Lopez and F. Podesta
(Observatorio Astronomico Felix Aguilar (OAFA))
Hugo Levato and Carlos Saffe
(Instituto de Ciencias Astronomicas, de la Tierra y del Espacio (ICATE))
R. Rebolo, M. Serra, N. Lodieu, G. Israelian, L. Suarez-Andres
(The Instituto de Astrofisica de Canarias)
D. Buckley, S. Potter, A. Kniazev, M. Kotze
(South African Astronomical Observatory)
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 S190512at errorbox 3161 sec after trigger time at 2019-05-12 18:59:55 UT, with upper limit up to 20.6 mag. The observations began at zenit distance = 148 deg. The sun altitude is -39.8 deg.
MASTER-Tavrida robotic telescope located in Russia (Lomonosov MSU, SAI Crimea astronomical station) started inspect of the LIGO/Virgo S190512at errorbox 6446 sec after trigger time at 2019-05-12 19:54:40 UT, with upper limit up to 19.9 mag. The observations began at zenit distance = 131 deg. The sun altitude is -23.4 deg.
MASTER-IAC robotic telescope located in Spain (IAC Teide Observatory) started inspect of the LIGO/Virgo S190512at errorbox 9407 sec after trigger time at 2019-05-12 20:44:01 UT, with upper limit up to 19.8 mag. Observations started at twilight. The observations began at zenit distance = 149 deg. The sun altitude is -12.9 deg.
MASTER-OAFA robotic telescope located in Argentina (OAFA observatory of San Juan National University) started inspect of the LIGO/Virgo S190512at errorbox 16758 sec after trigger time at 2019-05-12 22:46:32 UT, with upper limit up to 18.0 mag. Observations started at twilight. The observations began at zenit distance = 133 deg. The sun altitude is -12.4 deg.
The galactic latitude b = -60 deg., longitude l = 98 deg.
Real time updated cover map and OT discovered available here:
https://master.sai.msu.ru/site/master2/ligo_1.php?id=10364
We obtain a following upper limits.
Tmid-T0 | Date Time | Site | Coord (J2000) |Filt.| Expt. | Limit| Comment
_________|_____________________|_____________________|____________________________________|_____|_______|_______|________
3252 | 2019-05-12 18:59:55 | MASTER-SAAO | ( 16h 45m 26.79s , -26d 34m 45.66s) | C | 180 | 18.3 |
3462 | 2019-05-12 19:03:25 | MASTER-SAAO | ( 16h 45m 34.58s , -26d 34m 29.51s) | C | 180 | 19.1 |
3642 | 2019-05-12 19:03:25 | MASTER-SAAO | ( 16h 45m 34.58s , -26d 34m 29.50s) | C | 540 | 19.9 | Coadd
3672 | 2019-05-12 19:06:55 | MASTER-SAAO | ( 16h 45m 34.73s , -26d 34m 24.33s) | C | 180 | 19.3 |
3881 | 2019-05-12 19:10:25 | MASTER-SAAO | ( 16h 45m 34.89s , -26d 34m 21.30s) | C | 180 | 19.4 |
4653 | 2019-05-12 19:23:17 | MASTER-SAAO | ( 16h 49m 59.86s , -27d 55m 47.86s) | C | 180 | 17.7 |
4870 | 2019-05-12 19:26:53 | MASTER-SAAO | ( 16h 50m 01.24s , -27d 55m 39.33s) | C | 180 | 17.7 |
5087 | 2019-05-12 19:30:31 | MASTER-SAAO | ( 16h 31m 54.79s , -27d 54m 40.37s) | C | 180 | 17.4 |
5314 | 2019-05-12 19:34:18 | MASTER-SAAO | ( 16h 59m 03.66s , -27d 55m 30.83s) | C | 180 | 17.4 |
5557 | 2019-05-12 19:38:21 | MASTER-SAAO | ( 16h 32m 16.40s , -25d 54m 55.95s) | C | 180 | 18.6 |
5776 | 2019-05-12 19:42:00 | MASTER-SAAO | ( 16h 31m 56.97s , -27d 54m 34.35s) | C | 180 | 18.4 |
5994 | 2019-05-12 19:45:38 | MASTER-SAAO | ( 16h 40m 58.92s , -27d 54m 51.03s) | C | 180 | 18.3 |
6408 | 2019-05-12 19:52:31 | MASTER-SAAO | ( 16h 50m 45.98s , -25d 55m 24.69s) | C | 180 | 17.2 |
6537 | 2019-05-12 19:54:40 | MASTER-Tavrida | ( 15h 28m 19.74s , -11d 57m 51.48s) | C | 180 | 18.2 |
6537 | 2019-05-12 19:54:40 | MASTER-Tavrida | ( 15h 34m 49.37s , -12d 1m 17.05s) | C | 180 | 18.2 |
6643 | 2019-05-12 19:56:26 | MASTER-SAAO | ( 16h 58m 58.35s , -25d 55m 18.55s) | C | 180 | 17.1 |
6753 | 2019-05-12 19:58:16 | MASTER-Tavrida | ( 15h 22m 03.21s , - 9d 57m 26.80s) | C | 180 | 17.8 |
6753 | 2019-05-12 19:58:16 | MASTER-Tavrida | ( 15h 28m 30.07s , -10d 0m 49.87s) | C | 180 | 17.8 |
6861 | 2019-05-12 20:00:04 | MASTER-SAAO | ( 16h 59m 06.66s , -27d 55m 17.43s) | C | 180 | 16.8 |
6969 | 2019-05-12 20:01:52 | MASTER-Tavrida | ( 15h 19m 19.82s , -13d 57m 30.91s) | C | 180 | 18.7 |
6969 | 2019-05-12 20:01:52 | MASTER-Tavrida | ( 15h 25m 52.11s , -14d 0m 51.34s) | C | 180 | 18.6 |
7080 | 2019-05-12 20:03:43 | MASTER-SAAO | ( 16h 32m 17.82s , -25d 54m 46.47s) | C | 180 | 17.8 |
7184 | 2019-05-12 20:05:28 | MASTER-Tavrida | ( 15h 34m 47.84s , -12d 1m 19.03s) | C | 180 | 17.3 |
7184 | 2019-05-12 20:05:28 | MASTER-Tavrida | ( 15h 28m 18.67s , -11d 57m 59.81s) | C | 180 | 17.5 |
7296 | 2019-05-12 20:07:20 | MASTER-SAAO | ( 16h 41m 12.64s , -25d 55m 02.35s) | C | 180 | 17.7 |
7400 | 2019-05-12 20:09:03 | MASTER-Tavrida | ( 15h 22m 03.29s , - 9d 57m 49.13s) | C | 180 | 17.4 |
7400 | 2019-05-12 20:09:04 | MASTER-Tavrida | ( 15h 28m 29.99s , -10d 1m 06.81s) | C | 180 | 17.1 |
7513 | 2019-05-12 20:10:56 | MASTER-SAAO | ( 16h 41m 03.33s , -27d 54m 40.83s) | C | 180 | 17.6 |
7730 | 2019-05-12 20:14:33 | MASTER-SAAO | ( 16h 58m 58.36s , -25d 55m 13.53s) | C | 180 | 17.0 |
7947 | 2019-05-12 20:18:10 | MASTER-SAAO | ( 16h 41m 12.29s , -25d 54m 59.56s) | C | 180 | 17.4 |
8166 | 2019-05-12 20:21:49 | MASTER-SAAO | ( 17h 8m 12.20s , -27d 55m 29.24s) | C | 180 | 16.5 |
8382 | 2019-05-12 20:25:26 | MASTER-SAAO | ( 17h 9m 47.38s , -29d 55m 51.75s) | C | 180 | 16.9 |
8603 | 2019-05-12 20:29:06 | MASTER-SAAO | ( 16h 16m 20.90s , -23d 53m 55.54s) | C | 180 | 19.3 |
8822 | 2019-05-12 20:32:45 | MASTER-SAAO | ( 17h 8m 11.31s , -27d 55m 26.78s) | C | 180 | 17.5 |
9039 | 2019-05-12 20:36:23 | MASTER-SAAO | ( 17h 17m 14.71s , -27d 56m 03.24s) | C | 180 | 18.1 |
9257 | 2019-05-12 20:40:00 | MASTER-SAAO | ( 17h 9m 49.24s , -29d 55m 48.45s) | C | 180 | 17.6 |
9475 | 2019-05-12 20:43:38 | MASTER-SAAO | ( 17h 19m 03.08s , -29d 55m 45.82s) | C | 180 | 18.0 |
9497 | 2019-05-12 20:44:01 | MASTER-IAC | ( 15h 42m 47.95s , -15d 55m 56.26s) | C | 180 | 17.5 |
9695 | 2019-05-12 20:47:19 | MASTER-SAAO | ( 16h 16m 20.05s , -23d 53m 55.13s) | C | 180 | 19.5 |
9725 | 2019-05-12 20:47:48 | MASTER-IAC | ( 15h 42m 48.36s , -15d 55m 43.36s) | C | 180 | 17.9 |
9913 | 2019-05-12 20:50:56 | MASTER-SAAO | ( 16h 25m 05.08s , -23d 54m 29.46s) | C | 180 | 19.8 |
9970 | 2019-05-12 20:51:54 | MASTER-IAC | ( 15h 34m 15.90s , -13d 51m 32.58s) | C | 180 | 17.6 |
10131 | 2019-05-12 20:54:34 | MASTER-SAAO | ( 17h 17m 17.16s , -27d 56m 00.28s) | C | 180 | 18.2 |
10198 | 2019-05-12 20:55:41 | MASTER-IAC | ( 15h 34m 16.30s , -13d 52m 02.82s) | C | 180 | 18.1 |
10348 | 2019-05-12 20:58:11 | MASTER-SAAO | ( 17h 19m 04.03s , -29d 55m 43.59s) | C | 180 | 18.2 |
10444 | 2019-05-12 20:59:47 | MASTER-IAC | ( 15h 43m 04.42s , -15d 52m 18.42s) | C | 180 | 18.3 |
10582 | 2019-05-12 21:02:05 | MASTER-SAAO | ( 16h 24m 39.14s , -23d 47m 47.67s) | C | 180 | 19.6 |
10670 | 2019-05-12 21:03:34 | MASTER-IAC | ( 15h 34m 18.01s , -13d 51m 47.75s) | C | 180 | 18.4 |
10802 | 2019-05-12 21:05:45 | MASTER-SAAO | ( 16h 14m 08.32s , -25d 47m 51.43s) | C | 180 | 19.5 |
10903 | 2019-05-12 21:07:26 | MASTER-IAC | ( 15h 26m 24.83s , -15d 51m 38.73s) | C | 180 | 18.3 |
11037 | 2019-05-12 21:09:40 | MASTER-SAAO | ( 16h 33m 50.46s , -23d 54m 34.69s) | C | 180 | 19.6 |
11255 | 2019-05-12 21:13:18 | MASTER-SAAO | ( 16h 51m 24.13s , -29d 55m 25.98s) | C | 180 | 17.8 |
11490 | 2019-05-12 21:17:13 | MASTER-SAAO | ( 16h 14m 08.63s , -25d 47m 24.71s) | C | 180 | 19.6 |
11706 | 2019-05-12 21:20:49 | MASTER-SAAO | ( 16h 23m 01.35s , -25d 47m 33.01s) | C | 180 | 20.2 |
11929 | 2019-05-12 21:24:32 | MASTER-SAAO | ( 16h 33m 25.69s , -23d 48m 07.35s) | C | 180 | 20.0 |
12145 | 2019-05-12 21:28:08 | MASTER-SAAO | ( 16h 42m 12.14s , -23d 48m 18.15s) | C | 180 | 19.9 |
12362 | 2019-05-12 21:31:46 | MASTER-SAAO | ( 16h 50m 58.12s , -29d 48m 06.04s) | C | 180 | 18.0 |
12599 | 2019-05-12 21:35:42 | MASTER-SAAO | ( 17h 0m 37.35s , -29d 55m 26.61s) | C | 180 | 17.4 |
12779 | 2019-05-12 21:35:42 | MASTER-SAAO | ( 17h 0m 37.34s , -29d 55m 26.83s) | C | 540 | 17.6 | Coadd
12835 | 2019-05-12 21:39:39 | MASTER-SAAO | ( 17h 0m 10.81s , -29d 48m 39.81s) | C | 180 | 17.6 |
12877 | 2019-05-12 21:40:20 | MASTER-Tavrida | ( 15h 19m 20.13s , -13d 57m 17.01s) | C | 180 | 15.4 |
12877 | 2019-05-12 21:40:20 | MASTER-Tavrida | ( 15h 25m 52.90s , -14d 1m 04.02s) | C | 180 | 16.0 |
12983 | 2019-05-12 21:42:06 | MASTER-IAC | ( 15h 15m 27.09s , - 7d 51m 33.73s) | C | 180 | 18.5 |
12983 | 2019-05-12 21:42:06 | MASTER-IAC | ( 15h 23m 44.03s , - 7d 54m 44.68s) | C | 180 | 18.6 |
13054 | 2019-05-12 21:43:17 | MASTER-SAAO | ( 16h 23m 04.05s , -25d 48m 00.55s) | C | 180 | 20.2 |
13096 | 2019-05-12 21:44:00 | MASTER-Tavrida | ( 16h 50m 15.84s , -25d 59m 18.28s) | C | 180 | 18.2 |
13096 | 2019-05-12 21:44:00 | MASTER-Tavrida | ( 16h 57m 18.74s , -26d 3m 16.39s) | C | 180 | 17.9 |
13204 | 2019-05-12 21:45:47 | MASTER-IAC | ( 15h 15m 27.40s , - 7d 51m 20.10s) | C | 180 | 18.8 |
13204 | 2019-05-12 21:45:48 | MASTER-IAC | ( 15h 23m 44.17s , - 7d 54m 32.12s) | C | 180 | 19.1 |
13272 | 2019-05-12 21:46:55 | MASTER-SAAO | ( 16h 42m 12.92s , -23d 48m 03.53s) | C | 180 | 20.0 |
13317 | 2019-05-12 21:47:40 | MASTER-Tavrida | ( 15h 11m 56.63s , -11d 56m 42.35s) | C | 180 | 19.3 |
13317 | 2019-05-12 21:47:40 | MASTER-Tavrida | ( 15h 18m 25.83s , -12d 0m 25.31s) | C | 180 | 19.5 |
13441 | 2019-05-12 21:49:45 | MASTER-IAC | ( 15h 26m 24.46s , -15d 51m 37.99s) | C | 180 | 18.7 |
13489 | 2019-05-12 21:50:33 | MASTER-SAAO | ( 17h 0m 11.50s , -29d 48m 21.50s) | C | 180 | 17.8 |
13534 | 2019-05-12 21:51:18 | MASTER-Tavrida | ( 14h 54m 12.82s , - 3d 56m 41.20s) | C | 180 | 19.9 |
13534 | 2019-05-12 21:51:18 | MASTER-Tavrida | ( 15h 0m 34.85s , - 4d 0m 20.88s) | C | 180 | 19.7 |
13708 | 2019-05-12 21:54:11 | MASTER-SAAO | ( 16h 32m 32.12s , -29d 48m 12.02s) | C | 180 | 19.9 |
13709 | 2019-05-12 21:54:12 | MASTER-IAC | ( 15h 15m 26.17s , - 7d 51m 42.09s) | C | 180 | 19.0 |
13709 | 2019-05-12 21:54:12 | MASTER-IAC | ( 15h 23m 43.00s , - 7d 54m 55.85s) | C | 180 | 19.1 |
13755 | 2019-05-12 21:54:58 | MASTER-Tavrida | ( 16h 50m 16.13s , -25d 59m 44.25s) | C | 180 | 18.6 |
13755 | 2019-05-12 21:54:58 | MASTER-Tavrida | ( 16h 57m 18.92s , -26d 3m 42.61s) | C | 180 | 18.1 |
13930 | 2019-05-12 21:57:53 | MASTER-SAAO | ( 14h 52m 13.51s , - 1d 47m 14.02s) | C | 180 | 20.3 |
13936 | 2019-05-12 21:58:00 | MASTER-IAC | ( 14h 50m 34.27s , + 0d 8m 47.26s) | C | 180 | 19.4 |
13936 | 2019-05-12 21:58:00 | MASTER-IAC | ( 14h 58m 47.02s , + 0d 5m 33.75s) | C | 180 | 19.5 |
13975 | 2019-05-12 21:58:39 | MASTER-Tavrida | ( 15h 11m 58.17s , -11d 56m 43.04s) | C | 180 | 19.3 |
13975 | 2019-05-12 21:58:39 | MASTER-Tavrida | ( 15h 18m 27.22s , -12d 0m 27.22s) | C | 180 | 19.4 |
14146 | 2019-05-12 22:01:29 | MASTER-SAAO | ( 14h 52m 14.85s , + 2d 12m 20.55s) | C | 180 | 20.2 |
14158 | 2019-05-12 22:01:41 | MASTER-IAC | ( 14h 55m 27.54s , - 5d 50m 59.81s) | C | 180 | 19.1 |
14171 | 2019-05-12 22:01:55 | MASTER-IAC | ( 15h 3m 42.77s , - 5d 54m 12.35s) | C | 180 | 19.2 |
14194 | 2019-05-12 22:02:17 | MASTER-Tavrida | ( 14h 54m 12.81s , - 3d 56m 21.02s) | C | 180 | 19.7 |
14194 | 2019-05-12 22:02:17 | MASTER-Tavrida | ( 15h 0m 34.72s , - 4d 0m 00.96s) | C | 180 | 19.6 |
14367 | 2019-05-12 22:05:11 | MASTER-SAAO | ( 16h 32m 31.48s , -29d 47m 43.81s) | C | 180 | 19.5 |
14407 | 2019-05-12 22:05:51 | MASTER-IAC | ( 16h 12m 21.65s , -27d 52m 46.04s) | C | 180 | 18.0 |
14410 | 2019-05-12 22:05:54 | MASTER-Tavrida | ( 15h 8m 35.76s , - 1d 56m 57.51s) | C | 180 | 19.6 |
14410 | 2019-05-12 22:05:54 | MASTER-Tavrida | ( 15h 14m 57.14s , - 2d 0m 36.23s) | C | 180 | 19.7 |
14583 | 2019-05-12 22:08:47 | MASTER-SAAO | ( 16h 41m 44.36s , -29d 47m 59.52s) | C | 180 | 18.6 |
14628 | 2019-05-12 22:09:31 | MASTER-Tavrida | ( 15h 13m 02.99s , - 5d 57m 07.81s) | C | 180 | 19.5 |
14628 | 2019-05-12 22:09:31 | MASTER-Tavrida | ( 15h 19m 26.09s , - 6d 0m 49.00s) | C | 180 | 19.5 |
14638 | 2019-05-12 22:09:42 | MASTER-IAC | ( 14h 50m 32.87s , + 0d 8m 45.46s) | C | 180 | 19.4 |
14647 | 2019-05-12 22:09:50 | MASTER-IAC | ( 14h 58m 45.76s , + 0d 5m 33.02s) | C | 180 | 19.5 |
14804 | 2019-05-12 22:12:27 | MASTER-SAAO | ( 14h 52m 13.12s , - 1d 47m 49.66s) | C | 180 | 20.3 |
14849 | 2019-05-12 22:13:12 | MASTER-Tavrida | ( 17h 28m 29.61s , -30d 0m 16.81s) | C | 180 | 17.4 |
14849 | 2019-05-12 22:13:12 | MASTER-Tavrida | ( 17h 35m 48.18s , -30d 4m 18.76s) | C | 180 | 16.4 |
14870 | 2019-05-12 22:13:33 | MASTER-IAC | ( 14h 55m 27.62s , - 5d 51m 21.64s) | C | 180 | 19.1 |
14870 | 2019-05-12 22:13:33 | MASTER-IAC | ( 15h 3m 42.93s , - 5d 54m 33.02s) | C | 180 | 19.2 |
15021 | 2019-05-12 22:16:05 | MASTER-SAAO | ( 15h 0m 15.01s , - 1d 47m 50.27s) | C | 180 | 20.2 |
15065 | 2019-05-12 22:16:49 | MASTER-Tavrida | ( 17h 35m 47.24s , -30d 4m 20.88s) | C | 180 | 16.8 |
15065 | 2019-05-12 22:16:49 | MASTER-Tavrida | ( 17h 28m 28.73s , -30d 0m 18.86s) | C | 180 | 17.5 |
15096 | 2019-05-12 22:17:20 | MASTER-IAC | ( 16h 12m 23.48s , -27d 52m 47.41s) | C | 180 | 18.1 |
15237 | 2019-05-12 22:19:41 | MASTER-SAAO | ( 14h 52m 14.67s , + 2d 12m 22.47s) | C | 180 | 20.2 |
15287 | 2019-05-12 22:20:30 | MASTER-Tavrida | ( 15h 8m 35.84s , - 1d 56m 56.42s) | C | 180 | 19.5 |
15287 | 2019-05-12 22:20:30 | MASTER-Tavrida | ( 15h 14m 57.06s , - 2d 0m 35.08s) | C | 180 | 19.7 |
15325 | 2019-05-12 22:21:09 | MASTER-IAC | ( 14h 42m 46.17s , + 0d 6m 06.44s) | C | 180 | 19.7 |
15326 | 2019-05-12 22:21:09 | MASTER-IAC | ( 14h 34m 33.09s , + 0d 9m 17.49s) | C | 180 | 19.5 |
15459 | 2019-05-12 22:23:22 | MASTER-SAAO | ( 15h 0m 13.87s , + 2d 12m 19.74s) | C | 180 | 20.1 |
15505 | 2019-05-12 22:24:08 | MASTER-Tavrida | ( 15h 13m 03.03s , - 5d 57m 07.32s) | C | 180 | 19.5 |
15505 | 2019-05-12 22:24:08 | MASTER-Tavrida | ( 15h 19m 26.01s , - 6d 0m 48.51s) | C | 180 | 19.4 |
15552 | 2019-05-12 22:24:56 | MASTER-IAC | ( 14h 35m 05.27s , + 2d 8m 57.00s) | C | 180 | 19.4 |
15552 | 2019-05-12 22:24:56 | MASTER-IAC | ( 14h 43m 18.91s , + 2d 5m 46.13s) | C | 180 | 19.4 |
15680 | 2019-05-12 22:27:03 | MASTER-SAAO | ( 16h 41m 45.12s , -29d 48m 25.98s) | C | 180 | 18.3 |
15725 | 2019-05-12 22:27:48 | MASTER-Tavrida | ( 17h 28m 30.01s , -30d 0m 26.19s) | C | 180 | 17.5 |
15725 | 2019-05-12 22:27:48 | MASTER-Tavrida | ( 17h 35m 48.53s , -30d 4m 27.11s) | C | 180 | 17.5 |
15784 | 2019-05-12 22:28:47 | MASTER-IAC | ( 14h 36m 43.12s , + 4d 8m 55.23s) | C | 180 | 19.2 |
15784 | 2019-05-12 22:28:47 | MASTER-IAC | ( 14h 44m 57.88s , + 4d 5m 43.81s) | C | 180 | 19.2 |
15903 | 2019-05-12 22:30:46 | MASTER-SAAO | ( 16h 41m 46.51s , -29d 48m 33.59s) | C | 180 | 18.6 |
15941 | 2019-05-12 22:31:24 | MASTER-Tavrida | ( 17h 35m 47.58s , -30d 4m 27.59s) | C | 180 | 17.7 |
16015 | 2019-05-12 22:32:38 | MASTER-IAC | ( 14h 34m 33.79s , + 0d 9m 16.43s) | C | 180 | 19.6 |
16015 | 2019-05-12 22:32:38 | MASTER-IAC | ( 14h 42m 47.30s , + 0d 6m 05.66s) | C | 180 | 19.8 |
16123 | 2019-05-12 22:34:27 | MASTER-SAAO | ( 15h 0m 15.16s , - 1d 47m 54.93s) | C | 180 | 20.3 |
16158 | 2019-05-12 22:35:02 | MASTER-Tavrida | ( 17h 12m 59.32s , -32d 0m 25.40s) | C | 180 | 17.5 |
16158 | 2019-05-12 22:35:02 | MASTER-Tavrida | ( 17h 20m 26.90s , -32d 4m 26.82s) | C | 180 | 18.0 |
16238 | 2019-05-12 22:36:21 | MASTER-IAC | ( 14h 35m 05.06s , + 2d 9m 15.22s) | C | 180 | 19.4 |
16248 | 2019-05-12 22:36:31 | MASTER-IAC | ( 14h 43m 18.96s , + 2d 6m 04.56s) | C | 180 | 19.4 |
16341 | 2019-05-12 22:38:04 | MASTER-SAAO | ( 15h 0m 13.87s , + 2d 11m 59.19s) | C | 180 | 20.2 |
16375 | 2019-05-12 22:38:39 | MASTER-Tavrida | ( 17h 31m 52.29s , -32d 0m 55.05s) | C | 180 | 18.4 |
16376 | 2019-05-12 22:38:39 | MASTER-Tavrida | ( 17h 39m 19.96s , -32d 4m 57.56s) | C | 180 | 17.8 |
16486 | 2019-05-12 22:40:29 | MASTER-IAC | ( 14h 36m 41.91s , + 4d 8m 52.69s) | C | 180 | 19.2 |
16487 | 2019-05-12 22:40:30 | MASTER-IAC | ( 14h 44m 56.78s , + 4d 5m 41.78s) | C | 180 | 19.4 |
16559 | 2019-05-12 22:41:43 | MASTER-SAAO | ( 15h 9m 54.73s , - 3d 48m 14.73s) | C | 180 | 20.1 |
16709 | 2019-05-12 22:44:13 | MASTER-IAC | ( 15h 1m 00.52s , + 4d 5m 25.87s) | C | 180 | 19.3 |
16709 | 2019-05-12 22:44:13 | MASTER-IAC | ( 14h 52m 45.80s , + 4d 8m 36.97s) | C | 180 | 19.1 |
16779 | 2019-05-12 22:45:23 | MASTER-SAAO | ( 15h 44m 12.80s , -15d 47m 51.36s) | C | 180 | 19.8 |
16848 | 2019-05-12 22:46:32 | MASTER-OAFA | ( 14h 59m 39.62s , - 7d 55m 21.66s) | C | 180 | 16.6 |
16937 | 2019-05-12 22:48:00 | MASTER-IAC | ( 15h 43m 08.86s , -11d 52m 03.52s) | C | 180 | 18.9 |
16937 | 2019-05-12 22:48:00 | MASTER-IAC | ( 15h 51m 32.12s , -11d 55m 13.87s) | C | 180 | 19.3 |
16996 | 2019-05-12 22:48:59 | MASTER-SAAO | ( 15h 51m 55.91s , -13d 48m 22.85s) | C | 180 | 19.9 |
17163 | 2019-05-12 22:51:47 | MASTER-IAC | ( 15h 36m 45.04s , - 9d 51m 56.09s) | C | 180 | 19.1 |
17163 | 2019-05-12 22:51:47 | MASTER-IAC | ( 15h 45m 05.06s , - 9d 55m 07.76s) | C | 180 | 19.2 |
17215 | 2019-05-12 22:52:38 | MASTER-SAAO | ( 15h 9m 54.72s , - 3d 48m 10.49s) | C | 180 | 20.2 |
17389 | 2019-05-12 22:55:33 | MASTER-IAC | ( 15h 0m 59.09s , + 4d 5m 20.96s) | C | 180 | 19.3 |
17430 | 2019-05-12 22:56:14 | MASTER-SAAO | ( 15h 17m 54.05s , - 3d 48m 13.84s) | C | 180 | 20.0 |
17630 | 2019-05-12 22:59:34 | MASTER-IAC | ( 15h 43m 08.86s , -11d 52m 26.26s) | C | 180 | 18.9 |
17630 | 2019-05-12 22:59:34 | MASTER-IAC | ( 15h 51m 32.19s , -11d 55m 36.92s) | C | 180 | 19.3 |
17648 | 2019-05-12 22:59:52 | MASTER-SAAO | ( 15h 44m 12.99s , -15d 48m 27.64s) | C | 180 | 19.8 |
17859 | 2019-05-12 23:03:22 | MASTER-IAC | ( 15h 36m 46.20s , - 9d 51m 59.00s) | C | 180 | 19.1 |
17865 | 2019-05-12 23:03:29 | MASTER-SAAO | ( 15h 52m 33.01s , -15d 48m 36.23s) | C | 180 | 19.9 |
17866 | 2019-05-12 23:03:30 | MASTER-IAC | ( 15h 45m 06.18s , - 9d 55m 10.62s) | C | 180 | 19.2 |
18081 | 2019-05-12 23:07:05 | MASTER-SAAO | ( 15h 51m 56.05s , -13d 48m 23.23s) | C | 180 | 19.9 |
18100 | 2019-05-12 23:07:23 | MASTER-IAC | ( 16h 22m 07.75s , -25d 56m 05.47s) | C | 180 | 18.6 |
18100 | 2019-05-12 23:07:23 | MASTER-IAC | ( 16h 13m 01.28s , -25d 52m 54.13s) | C | 180 | 18.6 |
18193 | 2019-05-12 23:08:57 | MASTER-OAFA | ( 14h 39m 44.46s , + 6d 5m 29.85s) | C | 180 | 17.5 |
18298 | 2019-05-12 23:10:41 | MASTER-SAAO | ( 16h 0m 09.30s , -13d 48m 30.52s) | C | 180 | 20.2 |
18333 | 2019-05-12 23:11:16 | MASTER-IAC | ( 16h 4m 42.33s , -19d 52m 59.37s) | C | 180 | 18.6 |
18333 | 2019-05-12 23:11:16 | MASTER-IAC | ( 16h 13m 25.37s , -19d 56m 11.76s) | C | 180 | 18.9 |
18426 | 2019-05-12 23:12:49 | MASTER-OAFA | ( 14h 47m 47.88s , + 6d 4m 58.67s) | C | 180 | 17.5 |
18515 | 2019-05-12 23:14:19 | MASTER-SAAO | ( 15h 17m 53.81s , - 3d 48m 58.89s) | C | 180 | 20.1 |
18556 | 2019-05-12 23:14:59 | MASTER-IAC | ( 16h 0m 29.77s , -21d 52m 54.71s) | C | 180 | 18.7 |
18556 | 2019-05-12 23:15:00 | MASTER-IAC | ( 16h 9m 19.81s , -21d 56m 06.78s) | C | 180 | 18.9 |
18655 | 2019-05-12 23:16:38 | MASTER-OAFA | ( 15h 7m 44.47s , - 7d 55m 22.59s) | C | 180 | 17.7 |
18735 | 2019-05-12 23:17:58 | MASTER-SAAO | ( 15h 52m 33.09s , -15d 48m 51.85s) | C | 180 | 19.9 |
18798 | 2019-05-12 23:19:02 | MASTER-IAC | ( 16h 13m 02.72s , -25d 52m 54.75s) | C | 180 | 18.7 |
18798 | 2019-05-12 23:19:02 | MASTER-IAC | ( 16h 22m 09.38s , -25d 56m 07.07s) | C | 180 | 19.1 |
18951 | 2019-05-12 23:21:35 | MASTER-SAAO | ( 16h 0m 10.45s , -13d 48m 42.22s) | C | 180 | 20.2 |
19022 | 2019-05-12 23:22:45 | MASTER-IAC | ( 16h 13m 25.58s , -19d 55m 53.12s) | C | 180 | 19.0 |
19023 | 2019-05-12 23:22:46 | MASTER-IAC | ( 16h 4m 42.23s , -19d 52m 41.19s) | C | 180 | 18.8 |
19171 | 2019-05-12 23:25:14 | MASTER-SAAO | ( 15h 35m 25.98s , -13d 49m 01.46s) | C | 180 | 20.2 |
19254 | 2019-05-12 23:26:38 | MASTER-IAC | ( 16h 0m 28.24s , -21d 52m 56.20s) | C | 180 | 18.8 |
19255 | 2019-05-12 23:26:38 | MASTER-IAC | ( 16h 9m 18.65s , -21d 56m 08.11s) | C | 180 | 18.9 |
19390 | 2019-05-12 23:28:53 | MASTER-SAAO | ( 15h 27m 36.70s , -15d 48m 43.07s) | C | 180 | 20.2 |
19570 | 2019-05-12 23:28:53 | MASTER-SAAO | ( 15h 27m 36.70s , -15d 48m 43.07s) | C | 540 | 20.6 | Coadd
19482 | 2019-05-12 23:30:26 | MASTER-IAC | ( 16h 17m 44.65s , -21d 53m 21.34s) | C | 180 | 18.7 |
19482 | 2019-05-12 23:30:26 | MASTER-IAC | ( 16h 26m 34.96s , -21d 56m 33.96s) | C | 180 | 19.0 |
19669 | 2019-05-12 23:33:33 | MASTER-SAAO | ( 17h 7m 34.70s , -25d 49m 46.93s) | C | 180 | 18.3 |
19708 | 2019-05-12 23:34:11 | MASTER-IAC | ( 15h 27m 37.69s , - 5d 51m 54.70s) | C | 180 | 19.2 |
19708 | 2019-05-12 23:34:11 | MASTER-IAC | ( 15h 35m 53.31s , - 5d 55m 06.49s) | C | 180 | 19.4 |
19832 | 2019-05-12 23:36:15 | MASTER-OAFA | ( 15h 31m 57.69s , - 7d 56m 13.25s) | C | 180 | 17.5 |
19890 | 2019-05-12 23:37:13 | MASTER-SAAO | ( 15h 35m 27.97s , -13d 49m 00.98s) | C | 180 | 20.2 |
19931 | 2019-05-12 23:37:54 | MASTER-IAC | ( 15h 53m 10.68s , -17d 52m 28.25s) | C | 180 | 19.0 |
19931 | 2019-05-12 23:37:54 | MASTER-IAC | ( 16h 1m 48.21s , -17d 55m 38.66s) | C | 180 | 19.2 |
20061 | 2019-05-12 23:40:04 | MASTER-OAFA | ( 15h 48m 05.09s , -19d 56m 05.97s) | C | 180 | 17.9 |
20106 | 2019-05-12 23:40:50 | MASTER-SAAO | ( 15h 43m 41.31s , -13d 49m 04.43s) | C | 180 | 19.9 |
20156 | 2019-05-12 23:41:39 | MASTER-IAC | ( 16h 26m 33.69s , -21d 56m 33.90s) | C | 180 | 19.1 |
20156 | 2019-05-12 23:41:39 | MASTER-IAC | ( 16h 17m 43.05s , -21d 53m 23.05s) | C | 180 | 18.7 |
20288 | 2019-05-12 23:43:51 | MASTER-OAFA | ( 15h 6m 54.72s , + 0d 4m 57.83s) | C | 180 | 18.0 |
20324 | 2019-05-12 23:44:28 | MASTER-SAAO | ( 15h 27m 35.93s , -15d 49m 25.49s) | C | 180 | 20.1 |
20381 | 2019-05-12 23:45:24 | MASTER-IAC | ( 15h 27m 37.34s , - 5d 52m 15.40s) | C | 180 | 19.1 |
20381 | 2019-05-12 23:45:24 | MASTER-IAC | ( 15h 35m 53.53s , - 5d 55m 27.50s) | C | 180 | 19.5 |
20519 | 2019-05-12 23:47:42 | MASTER-OAFA | ( 15h 14m 55.13s , + 0d 4m 30.01s) | C | 180 | 17.8 |
20544 | 2019-05-12 23:48:08 | MASTER-SAAO | ( 15h 27m 37.52s , -15d 49m 29.80s) | C | 180 | 19.9 |
20606 | 2019-05-12 23:49:09 | MASTER-IAC | ( 15h 53m 11.41s , -17d 52m 28.02s) | C | 180 | 19.0 |
20606 | 2019-05-12 23:49:09 | MASTER-IAC | ( 16h 1m 49.72s , -17d 55m 38.35s) | C | 180 | 19.2 |
20749 | 2019-05-12 23:51:33 | MASTER-OAFA | ( 15h 31m 58.76s , - 7d 55m 50.17s) | C | 180 | 18.0 |
20760 | 2019-05-12 23:51:44 | MASTER-SAAO | ( 15h 35m 56.40s , -15d 49m 14.04s) | C | 180 | 19.8 |
20827 | 2019-05-12 23:52:51 | MASTER-IAC | ( 15h 36m 20.86s , -17d 52m 08.29s) | C | 180 | 19.1 |
20827 | 2019-05-12 23:52:51 | MASTER-IAC | ( 15h 44m 59.36s , -17d 55m 18.05s) | C | 180 | 19.4 |
20976 | 2019-05-12 23:55:19 | MASTER-OAFA | ( 15h 40m 03.79s , - 7d 55m 41.33s) | C | 180 | 17.7 |
20981 | 2019-05-12 23:55:24 | MASTER-SAAO | ( 17h 7m 35.29s , -25d 49m 44.24s) | C | 180 | 17.8 |
21051 | 2019-05-12 23:56:34 | MASTER-IAC | ( 15h 57m 18.27s , -23d 52m 56.98s) | C | 180 | 18.9 |
21062 | 2019-05-12 23:56:45 | MASTER-IAC | ( 16h 6m 17.60s , -23d 56m 06.15s) | C | 180 | 19.1 |
21198 | 2019-05-12 23:59:02 | MASTER-SAAO | ( 17h 16m 29.27s , -25d 50m 16.02s) | C | 180 | 18.5 |
21205 | 2019-05-12 23:59:08 | MASTER-OAFA | ( 15h 48m 02.82s , -19d 55m 53.18s) | C | 180 | 18.0 |
21286 | 2019-05-13 00:00:29 | MASTER-IAC | ( 16h 49m 50.89s , -23d 54m 11.74s) | C | 180 | 18.8 |
21286 | 2019-05-13 00:00:29 | MASTER-IAC | ( 16h 58m 50.02s , -23d 57m 23.43s) | C | 180 | 18.8 |
21424 | 2019-05-13 00:02:48 | MASTER-SAAO | ( 15h 43m 43.38s , -13d 49m 54.39s) | C | 180 | 19.9 |
21431 | 2019-05-13 00:02:54 | MASTER-OAFA | ( 15h 56m 33.75s , -19d 56m 27.49s) | C | 180 | 18.0 |
21524 | 2019-05-13 00:04:27 | MASTER-IAC | ( 15h 36m 22.41s , -17d 52m 10.18s) | C | 180 | 19.2 |
21524 | 2019-05-13 00:04:27 | MASTER-IAC | ( 15h 45m 00.94s , -17d 55m 20.03s) | C | 180 | 19.4 |
21642 | 2019-05-13 00:06:25 | MASTER-SAAO | ( 15h 35m 56.91s , -15d 49m 35.27s) | C | 180 | 19.9 |
21660 | 2019-05-13 00:06:44 | MASTER-OAFA | ( 15h 14m 55.49s , + 0d 4m 32.86s) | C | 180 | 18.0 |
21749 | 2019-05-13 00:08:12 | MASTER-IAC | ( 16h 6m 17.74s , -23d 55m 48.02s) | C | 180 | 19.2 |
21750 | 2019-05-13 00:08:13 | MASTER-IAC | ( 15h 57m 18.34s , -23d 52m 39.05s) | C | 180 | 19.0 |
21862 | 2019-05-13 00:10:06 | MASTER-SAAO | ( 17h 16m 29.85s , -25d 50m 04.15s) | C | 180 | 18.4 |
21886 | 2019-05-13 00:10:30 | MASTER-OAFA | ( 15h 40m 03.06s , - 7d 55m 39.51s) | C | 180 | 17.8 |
21979 | 2019-05-13 00:12:03 | MASTER-IAC | ( 16h 58m 48.77s , -23d 57m 23.24s) | C | 180 | 18.8 |
21979 | 2019-05-13 00:12:03 | MASTER-IAC | ( 16h 49m 49.44s , -23d 54m 12.70s) | C | 180 | 18.9 |
22079 | 2019-05-13 00:13:43 | MASTER-SAAO | ( 17h 28m 00.67s , -29d 50m 36.50s) | C | 180 | 17.8 |
22114 | 2019-05-13 00:14:18 | MASTER-OAFA | ( 15h 56m 33.07s , -19d 56m 04.52s) | C | 180 | 18.0 |
22202 | 2019-05-13 00:15:46 | MASTER-IAC | ( 16h 31m 24.15s , -29d 53m 46.64s) | C | 180 | 18.6 |
Filter C is a clear (unfiltred) band.
The observation and reduction will continue.
The message may be cited.
GCN Circular 24508
Subject
LIGO/Virgo S190512at: INTEGRAL inactive at the time of the event
Date
2019-05-12T20:19:13Z (7 years ago)
From
James Rodi at IAPS-INAF <james.rodi@inaf.it>
Enrico Bozzo, Volodymyr Savchenko, Carlo Ferrigno (ISDC/UniGE, Switzerland)
James Rodi, (IAPS-Roma, Italy)
Sandro Mereghetti (INAF IASF-Milano, Italy)
on behalf of the INTEGRAL multi-messenger collaboration:
https://www.astro.unige.ch/cdci/integral-multimessenger-collaboration
The INTEGRAL spacecraft has a highly elliptical orbit and the
instruments are switched off around the perigee passage, every 2.6 days,
to prevent radiation-induced damages. Unfortunately, at the time
of the LIGO/Virgo trigger S190512at (2019-05-12 18:07:14.422 UTC) the
spacecraft was preparing to start the observations after the perigee
passage between the orbits number 2089 and 2090 and no
scientific instrument data are available. INTEGRAL observations will
restart at approximately 2019-05-13 03:08:07 UTC.
GCN Circular 24504
Subject
LIGO/Virgo S190512at: IceCube Neutrino Search
Date
2019-05-12T19:08:15Z (7 years ago)
From
Claudio Kopper at IceCube/U of Alberta <ckopper@icecube.wisc.edu>
The IceCube Collaboration (http://icecube.wisc.edu/) reports:
IceCube has performed a search for track-like muon neutrino events consistent with the sky localization of S190512at-2-Initial in a time range of 1000 seconds centered on the alert event time (2019-05-12 17:58:54.000 UTC to 2019-05-12 18:15:34.000 UTC) during which IceCube was collecting good quality data. No track-like events are found in spatial coincidence with the 90% spatial containment of S190512at calculated from the map circulated in the preliminary notice.
IceCube's sensitivity to point sources within the location spanned by the 90% spatial containment of S190512at ranges from 0.029 to 0.568 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
GCN Circular 24503
Subject
LIGO/Virgo S190512at: Identification of a GW compact binary merger candidate
Date
2019-05-12T19:05:01Z (7 years ago)
From
Deep Chatterjee at University of Wisconsin, Milwaukee <deep@uwm.edu>
The LIGO Scientific Collaboration and the Virgo Collaboration report:
We identified the compact binary merger candidate S190512at during
real-time processing of data from LIGO Hanford Observatory (H1), LIGO
Livingston Observatory (L1), and Virgo Observatory (V1) at 2019-05-12
18:07:14.422 UTC (GPS time: 1241719652.422). The candidate was found
by the PyCBC Live [1], CWB [2], GstLAL [3], MBTAOnline [4], and spiir
[5] analysis pipelines.
S190512at is an event of interest because its false alarm rate, as
estimated by the online analysis, is 1.9e-09 Hz, or about one in 16
years. The event's properties can be found at this URL:
https://gracedb.ligo.org/superevents/S190512at
The classification of the GW signal, in order of descending
probability, is BBH (99%), Terrestrial (1%), BNS (<1%), NSBH (<1%), or
MassGap (<1%).
Assuming the candidate is astrophysical in origin, there is strong
evidence against the lighter compact object having a mass < 3 solar
masses (HasNS: <1%). Using the masses and spins inferred from the
signal, there is strong evidence against matter outside the final
compact object (HasRemnant: <1%).
One skymap is available at this time and can be retrieved from the
GraceDB event page:
* bayestar.fits.gz, an updated localization generated by BAYESTAR
[6], distributed via GCN notice about 53 minutes after the candidate.
For the bayestar.fits.gz skymap, the 90% credible region is 399 deg2.
Marginalized over the whole sky, the a posteriori luminosity distance
estimate is 1331 +/- 341 Mpc (a posteriori mean +/- standard
deviation).
No Preliminary Notice was sent for this event due to a technical problem.
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/><https://emfollow.docs.ligo.org/userguide/>.
[1] Nitz et al. PRD 98, 024050 (2018)
[2] Klimenko et al. PRD 93, 042004 (2016)
[3] Messick et al. PRD 95, 042001 (2017)
[4] Adams et al. CQG 33, 175012 (2016)
[5] Qi Chu, PhD Thesis, The University of Western Australia (2017)
[6] Singer & Price PRD 93, 024013 (2016)