GRB190720B

This page lists all entries on GRB190720B in GRBweb

Summary Fermi GBM GCN 25132 GCN 25137 GCN 25254

Summary table
Variable Value Source
GRB_name_Fermi GRB190720964
T0 23:08:38 UTC GCN_circulars,Fermi GBM final loc
ra 138.8700° Fermi_GBM
decl -55.5900° Fermi_GBM
pos_error 4.25e+00° Fermi_GBM
T90 10.496 s Fermi_GBM
T90_error 1.95 s Fermi_GBM
T90_start 23:08:38.508 UTC Fermi_GBM
fluence 2.87e-06 erg/cm² Fermi_GBM
fluence_error 5.67e-08 erg/cm² Fermi_GBM
T100 11.004 s
GBM_located True
mjd 58684.9643287037 GCN_circulars,Fermi GBM final loc
Fermi GBM table
GRB_name_Fermi GRB190720964
trigger_name bn190720964
ra 138.8700°
decl -55.5900°
pos_error 4.25e+00°
datum 2019-07-20
t_trigger 23:08:38.764 UTC
T90 10.496 s
T90_error 1.95 s
T90_start 23:08:38.508 UTC
fluence 2.87e-06 erg/cm²
fluence_error 5.67e-08 erg/cm²
flux_1024 5.63e+00 erg/cm²/s
flux_1024_error 3.20e-01 erg/cm²/s
flux_1024_time 7.68e-01 erg/cm²/s
flux_64 7.62e+00 erg/cm²/s
flux_64_error 1.39e+00 erg/cm²/s
GCN 25132 table
GRB_name GRB190720B
GCN_number 25132
Detection_method Fermi GBM final loc
t_trigger 23:08:38 UTC
ra 138.9000°
decl -55.6000°
Circular_text TITLE: GCN CIRCULAR NUMBER: 25132 SUBJECT: GRB 190720B: Fermi GBM Final Real-time Localization DATE: 19/07/20 23:20:09 GMT FROM: Fermi GBM Team at MSFC/Fermi-GBM The Fermi GBM team reports the detection of a likely LONG GRB At 23:08:38 UT on 20 Jul 2019, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 190720B (trigger 585356923.763906 / 190720964). The on-ground calculated location, using the Fermi GBM trigger data, is RA = 138.9, Dec = -55.6 (J2000 degrees, equivalent to J2000 09h 15m, -55d 36'), with a statistical uncertainty of 2.4 degrees. The angle from the Fermi LAT boresight is 54.0 degrees. The skymap can be found here: http://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2019/bn190720964/quicklook/glg_skymap_all_bn190720964.png The HEALPix FITS file, including the estimated localization systematic, can be found here: http://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2019/bn190720964/quicklook/glg_healpix_all_bn190720964.fit The GBM light curve can be found here: http://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2019/bn190720964/quicklook/glg_lc_medres34_bn190720964.gif
GCN 25137 table
GRB_name GRB190720B
GCN_number 25137
Detection_method Fermi GBM Other
Circular_text TITLE: GCN CIRCULAR NUMBER: 25137 SUBJECT: GRB 190720B: Insight-HXMT/HE detection DATE: 19/07/21 14:32:36 GMT FROM: Qi Luo at IHEP Q. Luo, C. Cai, S. Xiao, Q. B. Yi, Y. G. Zheng, Y. Huang, C. K. Li, X. B. Li, G. Li, J. Y. Liao, S. L. Xiong, C. Z. Liu, X. F. Li, Z. W. Li, Z. Chang, A. M. Zhang, Y. F. Zhang, X. F. Lu, C. L. Zou (IHEP), Y. J. Jin, Z. Zhang (THU), T. P. Li (IHEP/THU), F. J. Lu, L. M. Song, M. Wu, Y. P. Xu, S. N. Zhang (IHEP), report on behalf of the Insight-HXMT team: At 2019-07-20T23:08:39.50 (T0), Insight-HXMT/HE detected GRB 190720B (trigger ID: HEB190720964) in a routine search of the data, which was also triggered by Fermi/GBM (GCN #25132). The Insight-HXMT/HE light curve mainly consists of a single pulse with a duration (T90) of 8.59 s measured from T0-1.01 s. The 1-ms peak rate, measured from T0-0.14 s, is 873 cnts/sec. The total counts from this burst is 3465 counts. URL_LC: http://www.hxmt.org/images/GRB/HEB190720964_lc.jpg All measurements above are made with the CsI detectors operating in the regular mode with the energy range of about 80-800 keV (deposited energy). Only gamma-rays with energy greater than about 200 keV can penetrate the spacecraft and leave signals in the CsI detectors installed inside of the telescope. Insight-HXMT is the first Chinese space X-ray telescope, which was funded jointly by the China National Space Administration (CNSA) and the Chinese Academy of Sciences (CAS). More information about it could be found at: http://www.hxmt.org.
GCN 25254 table
GRB_name GRB190720B
GCN_number 25254
Detection_method AstroSat CZTI
Circular_text TITLE: GCN CIRCULAR NUMBER: 25254 SUBJECT: GRB 190720B: AstroSat CZTI detection DATE: 19/08/02 11:25:01 GMT FROM: Prachee Ghumatkar at IUCAA/AstroSat P. Ghumatkar, V. Sharma and D. Bhattacharya (IUCAA), V. Bhalerao (IIT-B), A. R. Rao (TIFR) and S. Vadawale (PRL) report on behalf of the AstroSat CZTI collaboration: Analysis of AstroSat CZTI data showed the detection of a long GRB 190720B, which was also detected by Fermi GBM (GCN #25132) and Insight-HXMT/HE (Luo Q. et. al., GCN #25137). The source was clearly detected in the 40-200 keV energy range. The light curve shows single pulse of emission with strongest peak at 23:08:40.0 UT. The measured peak count rate associated with the burst is 116 cts/s above the background in the combined data of four quadrants, with a total of 493 cts. The local mean background count rate was 507 cts/s. Using cumulative rates, we measure a T90 of 8.5 s. 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, ISAC, IUCAA, SAC and PRL. The Indian Space Research Organisation funded, managed and facilitated the project.