GRB 241117B
GCN Circular 38263
Subject
GRB 241117B: Fermi GBM Final Real-time Localization
Date
2024-11-17T20:27:34Z (6 months ago)
From
Fermi GBM Team at MSFC/Fermi-GBM <do_not_reply@GIOC.nsstc.nasa.gov>
Via
email
The Fermi GBM team reports the detection of a likely LONG GRB
At 20:16:55 UT on 17 Nov 2024, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 241117B (trigger 753567420.985494 / 241117845).
The on-ground calculated location, using the Fermi GBM trigger data, is RA = 323.5, Dec = 23.5 (J2000 degrees, equivalent to J2000 21h 33m, 23d 30'), with a statistical uncertainty of 1.7 degrees.
The angle from the Fermi LAT boresight is 65.0 degrees.
The skymap can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2024/bn241117845/quicklook/glg_skymap_all_bn241117845.png
The HEALPix FITS file, including the estimated localization systematic, can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2024/bn241117845/quicklook/glg_healpix_all_bn241117845.fit
The GBM light curve can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2024/bn241117845/quicklook/glg_lc_medres34_bn241117845.gif
GCN Circular 38264
Subject
Fermi GRB 241117B: Global MASTER-Net observations report
Date
2024-11-17T20:31:10Z (6 months ago)
From
Vladimir Lipunov at Moscow State U/Krylov Obs <lipunov@xray.sai.msu.ru>
Via
legacy email
V.Lipunov, E.Gorbovskoy, N.Tiurina, P.Balanutsa, , D.Vlasenko, I.Panchenko,
A.Kuznetsov, G.Antipov, A.Sankovich, A.Sosnovskij, Yu.Tselik, M.Gulyaev, Ya.Kechin,
V.Senik, A.Chasovnikov, K.Labsina, I. Gorbunov (Lomonosov MSU),
O.Gress, N.Budnev (ISU),
C.Francile, F. Podesta, R.Podesta, E. Gonzalez (Observatorio Astronomico Felix Aguilar (OAFA),
A. Tlatov, D. Dormidontov (Kislovodsk Solar Station of the Pulkovo Observatory),
A. Gabovich, V.Yurkov (Blagoveschensk Educational StateUniversity)
D.Buckley (SAAO),
R.Rebolo (The Instituto de Astrofisica de Canarias),
L.Carrasco, J.R.Valdes, V.Chavushyan, V.M.Patino Alvarez, J.Martinez,
A.R.Corella, L.H.Rodriguez (INAOE, Guillermo Haro Astrophysics 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 Fermi GRB 241117B ( Fermi GBM team, GCN 38263) errorbox 109 sec after notice time and 141 sec after trigger time at 2024-11-17 20:19:17 UT, with upper limit up to 17.5 mag. The observations began at zenith distance = 78 deg. The sun altitude is -30.8 deg.
The galactic latitude b = -21 deg., longitude l = 76 deg.
Real time updated cover map and OT discovered available here:
https://master.sai.msu.ru/site/master2/observ.php?id=2673826
We obtain a following upper limits.
Tmid-T0 | Date Time | Site | Coord (J2000) |Filt.| Expt. | Limit| Comment
_________|_____________________|_____________________|____________________________________|_____|_______|_______|________
157 | 2024-11-17 20:19:17 | MASTER-SAAO | (21h 31m 20.93s , +22d 14m 37.0s) | C | 30 | 17.0 |
192 | 2024-11-17 20:19:17 | MASTER-SAAO | (21h 31m 20.93s , +22d 14m 37.0s) | C | 100 | 17.5 | Coadd
206 | 2024-11-17 20:20:06 | MASTER-SAAO | (21h 31m 21.63s , +22d 14m 38.4s) | C | 30 | 16.9 |
260 | 2024-11-17 20:20:56 | MASTER-SAAO | (21h 31m 22.48s , +22d 14m 39.7s) | C | 40 | 16.9 |
329 | 2024-11-17 20:21:55 | MASTER-SAAO | (21h 31m 23.55s , +22d 14m 42.0s) | C | 60 | 16.8 |
Filter C is a clear (unfiltred) band.
The observation and reduction will continue.
The message may be cited.