GRB190215A

This page lists all entries on GRB190215A in GRBweb

Summary Fermi GBM GCN 23898 GCN 23899 GCN 23901

Summary table
Variable Value Source
GRB_name_Fermi GRB190215772
T0 18:31:22.475 UTC Fermi_GBM
ra 340.3900° Fermi_GBM
decl 37.4500° Fermi_GBM
pos_error 2.60e+00° Fermi_GBM
T90 23.296 s Fermi_GBM
T90_error 0.81 s Fermi_GBM
T90_start 18:31:24.011 UTC Fermi_GBM
fluence 2.13e-05 erg/cm² Fermi_GBM
fluence_error 5.48e-08 erg/cm² Fermi_GBM
T100 24.832 s
GBM_located True
mjd 58529.77178790509 Fermi_GBM
Fermi GBM table
GRB_name_Fermi GRB190215772
trigger_name bn190215772
ra 340.3900°
decl 37.4500°
pos_error 2.60e+00°
datum 2019-02-15
t_trigger 18:31:22.475 UTC
T90 23.296 s
T90_error 0.81 s
T90_start 18:31:24.011 UTC
fluence 2.13e-05 erg/cm²
fluence_error 5.48e-08 erg/cm²
flux_1024 8.67e+00 erg/cm²/s
flux_1024_error 2.75e-01 erg/cm²/s
flux_1024_time 5.76e+00 erg/cm²/s
flux_64 1.11e+01 erg/cm²/s
flux_64_error 1.19e+00 erg/cm²/s
GCN 23898 table
GRB_name GRB190215A
GCN_number 23898
Detection_method Fermi GBM Det
t_trigger 18:31:22.480 UTC
ra 340.4000°
decl 37.5000°
Circular_text TITLE: GCN CIRCULAR NUMBER: 23898 SUBJECT: GRB 190215A: Fermi GBM detection DATE: 19/02/16 01:00:56 GMT FROM: Bagrat Mailyan at UAH B. Mailyan (UAH) and C. Meegan (UAH) report on behalf of the Fermi GBM Team: "At 18:31:22.48 UT on 15 February 2019, the Fermi Gamma-Ray Burst Monitor triggered and located GRB 190215A (trigger 571948287 / 190215772). The on-ground calculated location, using the GBM trigger data, is RA, Dec = 340.4, +37.5 (J2000 degrees) with an uncertainty of 1.0 degree (radius, 1-sigma containment, statistical only; there is additionally a systematic error which we have characterized as a core-plus-tail model, with 90% of GRBs having a 3.7 deg error and a small tail suffering a larger than 10 deg systematic error. [Connaughton et al. 2015, ApJS, 216, 32]). The initial angle from the Fermi LAT boresight to the best location is 25 degrees. The GBM light curve consists of a bright FRED-like peak with multiple pulses within it, with a duration (T90) of about 23 s (50-300 keV). The time-averaged spectrum from T0+0 s to T0+23 s is best fit by a power law function with an exponential high-energy cutoff. The power law index is -0.18 +/- 0.03 and the cutoff energy, parameterized as Epeak, is 204 +/- 4 keV. The event fluence (10-1000 keV) in this time interval is (2.0 +/- 0.3)E-05 erg/cm^2. The 1s peak photon flux measured starting from T0+5.8 s in the 10-1000 keV band is 8.7 +/- 0.3 ph/s/cm^2. The spectral analysis results presented above are preliminary; final results will be published in the GBM GRB Catalog."
GCN 23899 table
GRB_name GRB190215A
GCN_number 23899
Detection_method Fermi GBM Other
Circular_text TITLE: GCN CIRCULAR NUMBER: 23899 SUBJECT: GRB 190215A: Insight-HXMT/HE detection DATE: 19/02/17 13:59:59 GMT FROM: QiBin Yi at IHEP, HXMT Q. B. Yi, 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 2019-02-15T18:31:22.000 (T0), the Insight-HXMT/HE detected GRB 190215A(trigger ID: HEB190215771) in a routine search of the data, which was also triggered by Fermi/GBM (B. Mailyan et al., GCN 23898). The Insight-HXMT/HE light curve mainly consists of two pulses with a duration (T90) of 14.80 s measured from T0+1.22 s. The 1-ms peak rate, measured from T0+6.155 s, is 3193.6 cnts/sec. The total counts from this burst is 28093.7 counts. URL_LC: http://www.hxmt.org/images/GRB/HEB190215771_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 (record 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 fundedjointly 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. _______________________________________________ Hxmt-ba mailing list Hxmt-ba@maillist.ihep.ac.cn http://maillist.ihep.ac.cn/mailman/listinfo/hxmt-ba
GCN 23901 table
GRB_name GRB190215A
GCN_number 23901
Detection_method AstroSat CZTI
Circular_text TITLE: GCN CIRCULAR NUMBER: 23901 SUBJECT: GRB 190215A: AstroSat CZTI detection DATE: 19/02/18 21:00:01 GMT FROM: Vidushi Sharma at IUCAA V. Sharma, T. Khanam, D. Bhattacharya and A. Vibhute (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 190215A, which was also detected by Fermi/GBM (Mailyan B. et al., GCN # 23898) and Insight-HXMT/HE (Yi Q. B. et al., GCN # 23899). The source was clearly detected in the 40-200 keV energy range. The light curve shows multiple pulses of emission with strongest peak at 18:31:29.5 UT, about 7 s after the Fermi/GBM trigger time. The measured peak count rate associated with the burst is 273 cts/s above the background in the combined data of four quadrants, with a total of 2683 cts. The local mean background count rate was 506 cts/s. Using cumulative rates, we measure a T90 of 23 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.