GRB 230117A
GCN Circular 33183
Subject
GRB 230117A: Fermi GBM Final Real-time Localization
Date
2023-01-17T05:14:24Z (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 05:04:04 UT on 17 Jan 2023, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 230117A (trigger 695624649.253766 / 230117211).
The on-ground calculated location, using the Fermi GBM trigger data, is RA = 13.6, Dec = 38.2 (J2000 degrees, equivalent to J2000 00h 54m, 38d 12'), with a statistical uncertainty of 6.5 degrees.
The angle from the Fermi LAT boresight is 73.0 degrees.
The skymap can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2023/bn230117211/quicklook/glg_skymap_all_bn230117211.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/bn230117211/quicklook/glg_healpix_all_bn230117211.fit
The GBM light curve can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2023/bn230117211/quicklook/glg_lc_medres34_bn230117211.gif
GCN Circular 33184
Subject
Fermi GRB 230117A: Global MASTER-Net observations report
Date
2023-01-17T09:30:16Z (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 230117A ( Fermi GBM team, GCN 33183) errorbox 14857 sec after notice time and 14892 sec after trigger time at 2023-01-17 09:12:16 UT, with upper limit up to 12.6 mag. Observations started at twilight. The observations began at zenith distance = 11 deg. The sun altitude is -11.4 deg.
The galactic latitude b = -24 deg., longitude l = 124 deg.
Real time updated cover map and OT discovered available here:
https://master.sai.msu.ru/site/master2/observ.php?id=2192799
We obtain a following upper limits.
Tmid-T0 | Date Time | Site | Coord (J2000) |Filt.| Expt. | Limit| Comment
_________|_____________________|_____________________|____________________________________|_____|_______|_______|________
14982 | 2023-01-17 09:12:16 | MASTER-Amur | (00h 43m 54.98s , +41d 16m 16.5s) | C | 180 | 12.6 |
15402 | 2023-01-17 09:20:15 | MASTER-Amur | (00h 54m 56.32s , +39d 10m 24.1s) | C | 60 | 12.1 |
15561 | 2023-01-17 09:22:55 | MASTER-Amur | (00h 53m 28.23s , +37d 17m 23.6s) | C | 60 | 12.3 |
Filter C is a clear (unfiltred) band.
The observation and reduction will continue.
The message may be cited.