GRB230129A

This page lists all entries on GRB230129A in GRBweb

Summary Fermi GBM GCN 33232 GCN 33236

Summary table
Variable Value Source
GRB_name_Fermi GRB230129254
T0 6:05:21 UTC GCN_circulars,Fermi GBM final loc
ra 111.9400° Fermi_GBM
decl 2.3500° Fermi_GBM
pos_error 1.31e+01° Fermi_GBM
T90 0.384 s Fermi_GBM
T90_error 0.143 s Fermi_GBM
T90_start 6:05:21.084 UTC Fermi_GBM
fluence 1.24e-07 erg/cm² Fermi_GBM
fluence_error 2.21e-08 erg/cm² Fermi_GBM
T100 0.468 s
GBM_located True
mjd 59973.25371527778 GCN_circulars,Fermi GBM final loc
Fermi GBM table
GRB_name_Fermi GRB230129254
trigger_name bn230129254
ra 111.9400°
decl 2.3500°
pos_error 1.31e+01°
datum 2023-01-29
t_trigger 6:05:21.148 UTC
T90 0.384 s
T90_error 0.143 s
T90_start 6:05:21.084 UTC
fluence 1.24e-07 erg/cm²
fluence_error 2.21e-08 erg/cm²
flux_1024 2.12e+00 erg/cm²/s
flux_1024_error 2.25e-01 erg/cm²/s
flux_1024_time -1.92e-01 erg/cm²/s
flux_64 5.68e+00 erg/cm²/s
flux_64_error 8.44e-01 erg/cm²/s
GCN 33232 table
GRB_name GRB230129A
GCN_number 33232
Detection_method Fermi GBM final loc
t_trigger 6:05:21 UTC
ra 111.9000°
decl 2.4000°
Circular_text TITLE: GCN CIRCULAR NUMBER: 33232 SUBJECT: GRB 230129A: Fermi GBM Final Real-time Localization DATE: 23/01/29 06:16:36 GMT FROM: Fermi GBM Team at MSFC/Fermi-GBM The Fermi GBM team reports the detection of a likely SHORT GRB At 06:05:21 UT on 29 Jan 2023, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 230129A (trigger 696665126.147626 / 230129254). The on-ground calculated location, using the Fermi GBM trigger data, is RA = 111.9, Dec = 2.4 (J2000 degrees, equivalent to J2000 07h 27m, 2d 23'), with a statistical uncertainty of 22.6 degrees. The angle from the Fermi LAT boresight is 76.0 degrees. The skymap can be found here: https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2023/bn230129254/quicklook/glg_skymap_all_bn230129254.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/bn230129254/quicklook/glg_healpix_all_bn230129254.fit The GBM light curve can be found here: https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2023/bn230129254/quicklook/glg_lc_medres34_bn230129254.gif
GCN 33236 table
GRB_name GRB230129A
GCN_number 33236
Detection_method AstroSat CZTI
Circular_text TITLE: GCN CIRCULAR NUMBER: 33236 SUBJECT: GRB 230129A: AstroSat CZTI detection DATE: 23/01/30 16:18:48 GMT FROM: Gaurav Waratkar at IIT,Bombay P K. Navaneeth (IUCAA), R. Gopalakrishnan (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 short GRB 230129A which was also detected by Fermi GBM (GCN Circ. 33232). The source was faintly detected in the 20-200 keV energy range. The light curve peaks at 2023-01-29 06:05:21.15 UTC. The measured peak count rate associated with the burst is 300 (+148, -38) counts/s above the background in the combined data of all quadrants, with a total of 161 (+48, -54) counts. The local mean background count rate was 319 (+7, -12) counts/s. Using cumulative rates, we measure a T90 of 0.78 (+0.37, -0.36) s. We note that the T90 measurement may be a slight underestimate due to the limited number of photons detected from the burst. It was also clearly detected in the CsI anticoincidence (Veto) detector in the 100-500 keV energy range. CZTI GRB detections are reported regularly on the payload site at http://astrosat.iucaa.in/czti/?q=grb. 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.