GRB231123A

This page lists all entries on GRB231123A in GRBweb

Summary Fermi GBM GCN 35162 GCN 35173

Summary table
Variable Value Source
GRB_name_Fermi GRB231123114
T0 2:44:03.881 UTC Fermi_GBM
ra 83.7800° Fermi_GBM
decl -19.5700° Fermi_GBM
pos_error 6.79e+00° Fermi_GBM
T90 5.12 s Fermi_GBM
T90_error 0.453 s Fermi_GBM
T90_start 2:44:03.881 UTC Fermi_GBM
fluence 7.15e-07 erg/cm² Fermi_GBM
fluence_error 1.44e-08 erg/cm² Fermi_GBM
T100 5.12 s
GBM_located True
mjd 60271.11393380787 Fermi_GBM
Fermi GBM table
GRB_name_Fermi GRB231123114
trigger_name bn231123114
ra 83.7800°
decl -19.5700°
pos_error 6.79e+00°
datum 2023-11-23
t_trigger 2:44:04.777 UTC
T90 5.12 s
T90_error 0.453 s
T90_start 2:44:03.881 UTC
fluence 7.15e-07 erg/cm²
fluence_error 1.44e-08 erg/cm²
flux_1024 3.56e+00 erg/cm²/s
flux_1024_error 2.58e-01 erg/cm²/s
flux_1024_time -5.12e-01 erg/cm²/s
flux_64 4.88e+00 erg/cm²/s
flux_64_error 1.28e+00 erg/cm²/s
GCN 35162 table
GRB_name GRB231123A
GCN_number 35162
Detection_method Fermi GBM final loc
t_trigger 2:44:04 UTC
ra 83.8000°
decl -19.6000°
Circular_text TITLE: GCN CIRCULAR NUMBER: 35162 SUBJECT: GRB 231123A: Fermi GBM Final Real-time Localization DATE: 23/11/23 02:54:35 GMT FROM: Fermi GBM Team at MSFC/Fermi-GBM The Fermi GBM team reports the detection of a likely SHORT GRB At 02:44:04 UT on 23 Nov 2023, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 231123A (trigger 722400249.776634 / 231123114). The on-ground calculated location, using the Fermi GBM trigger data, is RA = 83.8, Dec = -19.6 (J2000 degrees, equivalent to J2000 05h 35m, -19d 36'), with a statistical uncertainty of 9.2 degrees. The angle from the Fermi LAT boresight is 95.0 degrees. The skymap can be found here: https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2023/bn231123114/quicklook/glg_skymap_all_bn231123114.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/bn231123114/quicklook/glg_healpix_all_bn231123114.fit The GBM light curve can be found here: https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2023/bn231123114/quicklook/glg_lc_medres34_bn231123114.gif
GCN 35173 table
GRB_name GRB231123A
GCN_number 35173
Detection_method AstroSat CZTI
Circular_text TITLE: GCN CIRCULAR NUMBER: 35173 SUBJECT: GRB 231123A: AstroSat CZTI detection DATE: 23/11/24 07:55:13 GMT FROM: Gaurav Waratkar at IIT Bombay P. K. Navaneeth (IUCAA), G. Waratkar (IITB), A. Vibhute (IUCAA), V. Bhalerao (IITB), D. Bhattacharya (Ashoka University/IUCAA), A. R. Rao (IUCAA/TIFR), and S. Vadawale (PRL) report on behalf of the AstroSat CZTI collaboration: Analysis of AstroSat CZTI data with the CIFT framework (Sharma et al., 2021, JApA, 42, 73) showed the detection of a faint GRB 231123A which was also detected by Fermi-GBM (Fermi GBM team, GCN Circ. 35162). We see a faint detection in the CZT detectors in the 20-200 keV energy range. The light curve peaks at 2023-11-23 02:44:04.5 UTC. The measured peak count rate associated with the burst is 173 (+82, -43) counts/s above the background in the combined data of three quadrants (out of four), with a total of 203 (+97, -93) counts. The local mean background count rate was 272 (+4, -6) counts/s. Using cumulative rates, we measure a T90 of 3.5 (+1.5, -2.3) s. CZTI is built by a TIFR-led consortium of institutes across India, including VSSC, URSC, IUCAA, SAC, and PRL. The Indian Space Research Organisation funded, managed, and facilitated the project. CZTI GRB detections are reported regularly on the payload site at: http://astrosat.iucaa.in/czti/?q=grb