GRB 230314A
GCN Circular 33474
Subject
GRB 230314A: Fermi GBM Final Real-time Localization
Date
2023-03-14T03:01:40Z (2 years ago)
From
Fermi GBM Team at MSFC/Fermi-GBM <do_not_reply@GIOC.nsstc.nasa.gov>
The Fermi GBM team reports the detection of a likely LONG GRB
At 02:51:24 UT on 14 Mar 2023, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 230314A (trigger 700455089.129136 / 230314119).
The on-ground calculated location, using the Fermi GBM trigger data, is RA = 236.4, Dec = 74.8 (J2000 degrees, equivalent to J2000 15h 45m, 74d 47'), with a statistical uncertainty of 4.6 degrees.
The angle from the Fermi LAT boresight is 40.0 degrees.
The skymap can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2023/bn230314119/quicklook/glg_skymap_all_bn230314119.png
The HEALPix FITS file, including the estimated localization systematic, can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2023/bn230314119/quicklook/glg_healpix_all_bn230314119.fit
The GBM light curve can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2023/bn230314119/quicklook/glg_lc_medres34_bn230314119.gif
GCN Circular 33476
Subject
Fermi GRB 230314A: Global MASTER-Net observations report
Date
2023-03-14T10:45:22Z (2 years ago)
From
Vladimir Lipunov at Moscow State U/Krylov Obs <lipunov@xray.sai.msu.ru>
V. Lipunov, V.Kornilov, E.Gorbovskoy, K.Zhirkov, N.Tyurina, P.Balanutsa, A.Kuznetsov, D. Vlasenko,
G.Antipov, D.Zimnukhov, V.Senik, E.Minkina, A.Chasovnikov, V.Topolev, D.Kuvshinov, D.Cheryasov, Ya.Kechin
(Lomonosov Moscow State University, SAI, Physics Department),
R. Podesta, C.Lopez, F. Podesta, C.Francile
(Observatorio Astronomico Felix Aguilar OAFA),
R. Rebolo, M. Serra
(The Instituto de Astrofisica de Canarias),
D. Buckley
(South African Astronomical Observatory),
O.A. Gres, N.M. Budnev
(Irkutsk State University, API),
L.Carrasco, J.R.Valdes, V.Chavushyan, V.M.Patino Alvarez, J.Martinez, A.R.Corella, L.H.Rodriguez
(INAOE, Guillermo Haro Astrophysics Observatory),
A. Tlatov, D. Dormidontov
(Kislovodsk Solar Station of the Pulkovo Observatory),
A. Gabovich, V.Yurkov
(Blagoveschensk Educational State University)
MASTER-Amur robotic telescope (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L) located in Russia (Blagoveshchensk State Pedagogical University) started inspect of the Fermi GRB 230314A ( Fermi GBM team, GCN 33474) errorbox 27256 sec after notice time and 27291 sec after trigger time at 2023-03-14 10:26:15 UT, with upper limit up to 13.9 mag. Observations started at twilight. The observations began at zenith distance = 53 deg. The sun altitude is -9.5 deg.
The galactic latitude b = 38 deg., longitude l = 110 deg.
Real time updated cover map and OT discovered available here:
https://master.sai.msu.ru/site/master2/observ.php?id=2204543
We obtain a following upper limits.
Tmid-T0 | Date Time | Site | Coord (J2000) |Filt.| Expt. | Limit| Comment
_________|_____________________|_____________________|____________________________________|_____|_______|_______|________
27322 | 2023-03-14 10:26:15 | MASTER-Amur | (16h 07m 24.95s , +75d 14m 49.7s) | C | 60 | 12.5 |
27401 | 2023-03-14 10:27:35 | MASTER-Amur | (15h 37m 46.79s , +73d 22m 21.4s) | C | 60 | 12.9 |
27482 | 2023-03-14 10:28:55 | MASTER-Amur | (16h 05m 41.11s , +73d 21m 07.8s) | C | 60 | 12.6 |
27569 | 2023-03-14 10:30:22 | MASTER-Amur | (15h 34m 45.47s , +77d 09m 41.4s) | C | 60 | 13.3 |
27648 | 2023-03-14 10:31:42 | MASTER-Amur | (16h 10m 58.71s , +77d 11m 33.8s) | C | 60 | 13.4 |
27728 | 2023-03-14 10:33:02 | MASTER-Amur | (14h 36m 06.57s , +75d 13m 56.6s) | C | 60 | 13.8 |
27807 | 2023-03-14 10:34:21 | MASTER-Amur | (15h 07m 35.35s , +75d 14m 30.1s) | C | 60 | 13.9 |
27887 | 2023-03-14 10:35:41 | MASTER-Amur | (15h 40m 02.27s , +71d 27m 17.7s) | C | 60 | 13.7 |
27967 | 2023-03-14 10:37:01 | MASTER-Amur | (16h 05m 15.35s , +71d 29m 04.3s) | C | 60 | 13.6 |
Filter C is a clear (unfiltred) band.
The observation and reduction will continue.
The message may be cited.
GCN Circular 33488
Subject
GRB 230314A: TURBO Optical Upper Limit
Date
2023-03-20T20:52:00Z (2 years ago)
From
Robert Strausbaugh at University of Minnesota <rstrausb@umn.edu>
R. Strausbaugh (UMN), D. Warshofsky (UMN), P. L. Kelly (UMN), M. Tran (UMN)
report on behalf of a larger collaboration:
We observed the GRB 2303014A (Fermi GBM Team, GCN 33474) field with the
Total-Coverage Ultrafast Response to Binary-Mergers Observatory (TURBO)
prototype telescope in St. Paul, Minnesota on March 14, from 05:02 to 08:36
UT (corresponding to 2.01 to 5.52 hours after GRB trigger) in SDSS g and
r-band filters.
We acquired a series of 30x60s exposures over the entire observing period
in each band covering an area of about 12 square degrees with corners for
each field listed in the table below. We do not detect any fading sources
in the GBM error region in either band, consistent with available optical
upper limits (Lipunov et al., GCN 33249).
The following 3-sigma upper limits in AB magnitudes are calculated using
the Pan-STARRS catalog as reference:
Filt. | Corners of fields (hh:mm:ss,dd:mm:ss)| Upper Limit
���---------------------------------------------------------------------------------------------
g | (15:08:41,+75:20:31) ,(16:08:31,+74:24:12) |18.2
���---------------------------------------------------------------------------------------------
r | (16:06:24,+75:12:04) ,(15:08:34,+74:04:37) |18.6
���---------------------------------------------------------------------------------------------
g | (15:20:58,+75:20:08) ,(16:20:45,+74:23:31) |18
���---------------------------------------------------------------------------------------------
r | (16:18:28,+75:12:01) ,(15:20:35,+74:03:47) |18.7
���---------------------------------------------------------------------------------------------
g | (15:12:17,+73:21:35) ,(16:05:17,+72:25:04) |18.3
���---------------------------------------------------------------------------------------------
r |(16:03:27 ,+73:12:08) ,(15:12:06,+72:04:05) |18.7
���---------------------------------------------------------------------------------------------
g | (15:24:16,+73:21:38) ,(16:17:16,+72:25:03) |18.1
���---------------------------------------------------------------------------------------------
r | (16:15:22,+73:12:30) ,(15:23:58,+72:04:42) |18.7
���---------------------------------------------------------------------------------------------
g | (15:04:23,+77:18:32) ,(16:13:02,+76:22:15) |18.2
���---------------------------------------------------------------------------------------------
r | (16:10:49,+77:10:25) ,(15:04:38,+76:01:38) |18.6
���---------------------------------------------------------------------------------------------
g | (15:16:20,+77:18:47) ,(16:24:59,+76:22:30) |18.1
���---------------------------------------------------------------------------------------------
r | (16:22:46,+77:10:29) ,(15:16:35,+76:01:37) |18.7
These magnitudes are not corrected for foreground Galactic extinction.
The TURBO prototype in St. Paul consists of two co-mounted 11-inch
telescopes each with a 6.6 square degree field of view. TURBO will consist
of two arrays of 8 pairs of co-mounted 11-inch telescopes at two dark-sky
sites: Magdalena Ridge Observatory, New Mexico, USA and Skinakas
Observatory, Crete, Greece.