GRB191009A

This page lists all entries on GRB191009A in GRBweb

Summary Fermi GBM GCN 25985 GCN 25986 GCN 25997 GCN 26004

Summary table
Variable Value Source
GRB_name_Fermi GRB191009298
T0 7:08:56 UTC GCN_circulars,Fermi GBM final loc
ra 26.8100° Fermi_GBM
decl 65.7300° Fermi_GBM
pos_error 3.16e+00° Fermi_GBM
T90 61.697 s Fermi_GBM
T90_error 0.724 s Fermi_GBM
T90_start 7:08:57.793 UTC Fermi_GBM
fluence 5.99e-06 erg/cm² Fermi_GBM
fluence_error 3.68e-08 erg/cm² Fermi_GBM
T100 63.49 s
GBM_located True
mjd 58765.29787037037 GCN_circulars,Fermi GBM final loc
Fermi GBM table
GRB_name_Fermi GRB191009298
trigger_name bn191009298
ra 26.8100°
decl 65.7300°
pos_error 3.16e+00°
datum 2019-10-09
t_trigger 7:08:56.769 UTC
T90 61.697 s
T90_error 0.724 s
T90_start 7:08:57.793 UTC
fluence 5.99e-06 erg/cm²
fluence_error 3.68e-08 erg/cm²
flux_1024 3.75e+00 erg/cm²/s
flux_1024_error 2.51e-01 erg/cm²/s
flux_1024_time 7.62e+00 erg/cm²/s
flux_64 5.20e+00 erg/cm²/s
flux_64_error 1.00e+00 erg/cm²/s
GCN 25985 table
GRB_name GRB191009A
GCN_number 25985
Detection_method Fermi GBM final loc
t_trigger 7:08:56 UTC
ra 26.8000°
decl 65.7000°
Circular_text TITLE: GCN CIRCULAR NUMBER: 25985 SUBJECT: GRB 191009A: Fermi GBM Final Real-time Localization DATE: 19/10/09 07:19:20 GMT FROM: Fermi GBM Team at MSFC/Fermi-GBM The Fermi GBM team reports the detection of a likely LONG GRB At 07:08:56 UT on 9 Oct 2019, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 191009A (trigger 592297741.769374 / 191009298). The on-ground calculated location, using the Fermi GBM trigger data, is RA = 26.8, Dec = 65.7 (J2000 degrees, equivalent to J2000 01h 47m, 65d 42'), with a statistical uncertainty of 1.4 degrees. The angle from the Fermi LAT boresight is 40.0 degrees. The skymap can be found here: http://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2019/bn191009298/quicklook/glg_skymap_all_bn191009298.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/bn191009298/quicklook/glg_healpix_all_bn191009298.fit The GBM light curve can be found here: http://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2019/bn191009298/quicklook/glg_lc_medres34_bn191009298.gif
GCN 25986 table
GRB_name GRB191009A
GCN_number 25986
Detection_method Other
Circular_text TITLE: GCN CIRCULAR NUMBER: 25986 SUBJECT: GRB 191009A: BALROG localization (Fermi Trigger 592297741 / GRB 191009298) DATE: 19/10/09 07:38:41 GMT FROM: Jochen Greiner at MPE,Garching B. Biltzinger, F. Kunzweiler, F. Berlato, J. Burgess & J. Greiner (all MPE Garching) report: The public trigdat data of the Fermi Gamma-ray Burst Monitor (GBM) trigger 592297741 at 07:08:56 on 09 Oct. 2019 were automatically fitted for spectrum and sky location with BALROG (Burgess et al. 2018, MNRAS 476, 1427; Berlato et al. 2019, ApJ 873, 60). The best-fit position (1 sigma statistical errors) is: RA(2000.0) = 30.0+/-5.9 deg Decl.(2000.0) = 67.1+/-2.1 deg We estimate an additional systematic error of 2 deg. Further details are available at: https://grb.mpe.mpg.de/grb/GRB191009298/ The Healpix map can be downloaded from: https://grb.mpe.mpg.de/grb/GRB191009298/healpix The location parameters are available as JSON at: https://grb.mpe.mpg.de/grb/GRB191009298/json
GCN 25997 table
GRB_name GRB191009A
GCN_number 25997
Detection_method Fermi GBM Other
Circular_text TITLE: GCN CIRCULAR NUMBER: 25997 SUBJECT: GRB 191009A: Insight-HXMT/HE detection DATE: 19/10/11 11:14:37 GMT FROM: QiBin Yi at IHEP, HXMT Q. B. Yi, S. Xiao, Q. Luo, C. Cai, 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, X. F. Lu, A. M. Zhang, Y. F. Zhang, 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 2019-10-09T07:08:56.77 (T0), Insight-HXMT/HE detected GRB 191009A (trigger ID: HEB191009297) in a routine search of the data, which was also triggered by Fermi/GBM (GCN #25985). The Insight-HXMT/HE light curve mainly consists of a single pulse with a duration (T90) of 17.76 s measured from T0-1.56 s. The 1-ms peak rate, measured from T0+7.40 s, is 495 cnts/sec. The total counts from this burst is 1769 counts. URL_LC: http://www.hxmt.org/images/GRB/HEB191009297_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 26004 table
GRB_name GRB191009A
GCN_number 26004
Detection_method AstroSat CZTI
Circular_text TITLE: GCN CIRCULAR NUMBER: 26004 SUBJECT: GRB 191009A: AstroSat CZTI detection DATE: 19/10/12 05:31:46 GMT FROM: Ramkrishna Gaikwad at IUCAA/AstroSat R. Gaikwad, 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 GRB 191009A, which was also detected by Fermi GBM Final Real-time Localization (GCN #25985), BALROG localization (Biltzinger B. et al., GCN # 25986) and Insight-HXMT/HE (Luo Q. et al., GCN # 25997). The source was clearly detected in the 40-200 keV energy range. The light curve shows multiple pulses of emission with the strongest peak at 2019-10-09 07:08:56.0 UT. The measured peak count rate associated with the burst is 572 cts/s above the background in the combined data of four quadrants, with a total of 1682 cts. The local mean background count rate was 473 cts/s. Using cumulative rates, we measure a T90 of 22.0 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.