GRB200801B

This page lists all entries on GRB200801B in GRBweb

Summary Fermi GBM GCN 28184 GCN 28185 GCN 28195 GCN 28197

Summary table
Variable Value Source
GRB_name_Fermi GRB200801650
T0 15:35:46 UTC GCN_circulars,Fermi GBM final loc
ra 70.5400° Fermi_GBM
decl -33.0600° Fermi_GBM
pos_error 2.72e+00° Fermi_GBM
T90 63.745 s Fermi_GBM
T90_error 1.557 s Fermi_GBM
T90_start 15:35:47.266 UTC Fermi_GBM
fluence 1.20e-05 erg/cm² Fermi_GBM
fluence_error 6.73e-08 erg/cm² Fermi_GBM
T100 65.011 s
GBM_located True
mjd 59062.64983796296 GCN_circulars,Fermi GBM final loc
Fermi GBM table
GRB_name_Fermi GRB200801650
trigger_name bn200801650
ra 70.5400°
decl -33.0600°
pos_error 2.72e+00°
datum 2020-08-01
t_trigger 15:35:46.754 UTC
T90 63.745 s
T90_error 1.557 s
T90_start 15:35:47.266 UTC
fluence 1.20e-05 erg/cm²
fluence_error 6.73e-08 erg/cm²
flux_1024 5.60e+00 erg/cm²/s
flux_1024_error 2.25e-01 erg/cm²/s
flux_1024_time 1.47e+00 erg/cm²/s
flux_64 6.85e+00 erg/cm²/s
flux_64_error 1.05e+00 erg/cm²/s
GCN 28184 table
GRB_name GRB200801B
GCN_number 28184
Detection_method Fermi GBM final loc
t_trigger 15:35:46 UTC
ra 70.5000°
decl -33.1000°
Circular_text TITLE: GCN CIRCULAR NUMBER: 28184 SUBJECT: GRB 200801B: Fermi GBM Final Real-time Localization DATE: 20/08/01 15:46:11 GMT FROM: Fermi GBM Team at MSFC/Fermi-GBM The Fermi GBM team reports the detection of a likely LONG GRB At 15:35:46 UT on 1 Aug 2020, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 200801B (trigger 617988951.753576 / 200801650). The on-ground calculated location, using the Fermi GBM trigger data, is RA = 70.5, Dec = -33.1 (J2000 degrees, equivalent to J2000 04h 42m, -33d 06'), with a statistical uncertainty of 1.3 degrees. The angle from the Fermi LAT boresight is 38.0 degrees. The skymap can be found here: https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2020/bn200801650/quicklook/glg_skymap_all_bn200801650.png The HEALPix FITS file, including the estimated localization systematic, can be found here: https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2020/bn200801650/quicklook/glg_healpix_all_bn200801650.fit The GBM light curve can be found here: https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2020/bn200801650/quicklook/glg_lc_medres34_bn200801650.gif
GCN 28185 table
GRB_name GRB200801B
GCN_number 28185
Detection_method Other
Circular_text TITLE: GCN CIRCULAR NUMBER: 28185 SUBJECT: GRB 200801B: BALROG localization (Fermi Trigger 617988951 / GRB 200801650) DATE: 20/08/01 16:03:02 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 617988951 at 15:35:46 on 01 Aug. 2020 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) = 78.8+/-2.8 deg Decl.(2000.0) = -28.7+/-1.6 deg We estimate an additional systematic error of 2 deg. Further details are available at: https://grb.mpe.mpg.de/grb/GRB200801650/ The Healpix map can be downloaded from: https://grb.mpe.mpg.de/grb/GRB200801650/healpix The location parameters are available as JSON at: https://grb.mpe.mpg.de/grb/GRB200801650/json
GCN 28195 table
GRB_name GRB200801B
GCN_number 28195
Detection_method Fermi GBM Other
Circular_text TITLE: GCN CIRCULAR NUMBER: 28195 SUBJECT: Fermi GRB 200801B: Global MASTER-Net observations report DATE: 20/08/03 01:30:11 GMT FROM: Vladimir Lipunov at Moscow State U/Krylov Obs V. Lipunov, E. Gorbovskoy, V.Kornilov, N.Tyurina, P.Balanutsa, A.Kuznetsov, F.Balakin, V.Vladimirov, D. Vlasenko, I.Gorbunov, D.Zimnukhov, V.Senik, T.Pogrosheva, D.Kuvshinov, D. Cheryasov (Lomonosov Moscow State University, SAI, Physics Department), R. Podesta, C.Lopez, F. Podesta, C.Francile (Observatorio Astronomico Felix Aguilar OAFA), H.Levato (Instituto de Ciencias Astronomicas, de la Tierra y del Espacio ICATE), R. Rebolo, M. Serra (The Instituto de Astrofisica de Canarias), D. Buckley (South African Astronomical Observatory), O.A. Gres, N.M. Budnev, O.Ershova (Irkutsk State University, API), A. Tlatov, D. Dormidontov (Kislovodsk Solar Station of the Pulkovo Observatory), V. Yurkov, A. Gabovich, Yu. Sergienko (Blagoveschensk Educational State University) MASTER-SAAO robotic telescope (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L) located in South Africa (South African Astronomical Observatory) started inspect of the Fermi GRB 200801B ( Fermi GBM team, GCN 28184) errorbox 1 days 31237 sec after notice time and 1 days 31265 sec after trigger time at 2020-08-03 00:16:52 UT, with upper limit up to 17.8 mag. The observations began at zenith distance = 74 deg. The sun altitude is -64.7 deg. The galactic latitude b = -40 deg., longitude l = 235 deg. Real time updated cover map and OT discovered available here: https://master.sai.msu.ru/site/master2/observ.php?id=1412095 We obtain a following upper limits. Tmid-T0 | Date Time | Site | Coord (J2000) |Filt.| Expt. | Limit| Comment _________|_____________________|_____________________|____________________________________|_____|_______|_______|________ 117695 | 2020-08-03 00:16:52 | MASTER-SAAO | (04h 34m 14.12s , -34d 00m 12.6s) | C | 60 | 17.2 | 117775 | 2020-08-03 00:18:11 | MASTER-SAAO | (04h 40m 57.39s , -36d 00m 44.9s) | C | 60 | 17.4 | 117855 | 2020-08-03 00:19:31 | MASTER-SAAO | (04h 27m 58.81s , -31d 59m 52.9s) | C | 60 | 16.7 | 118436 | 2020-08-03 00:29:13 | MASTER-SAAO | (04h 34m 12.90s , -34d 00m 26.1s) | C | 60 | 17.4 | 118516 | 2020-08-03 00:30:32 | MASTER-SAAO | (04h 41m 02.38s , -36d 01m 46.2s) | C | 60 | 17.6 | 118596 | 2020-08-03 00:31:52 | MASTER-SAAO | (04h 28m 06.15s , -32d 00m 17.9s) | C | 60 | 17.0 | 118755 | 2020-08-03 00:34:32 | MASTER-SAAO | (04h 38m 34.73s , -32d 00m 30.4s) | C | 60 | 17.0 | 118755 | 2020-08-03 00:34:32 | MASTER-SAAO | (04h 46m 51.81s , -31d 59m 19.5s) | C | 60 | 16.7 | 118835 | 2020-08-03 00:35:52 | MASTER-SAAO | (04h 45m 06.92s , -34d 01m 26.8s) | C | 60 | 17.6 | 118835 | 2020-08-03 00:35:52 | MASTER-SAAO | (04h 53m 35.54s , -34d 00m 14.9s) | C | 60 | 17.3 | 118915 | 2020-08-03 00:37:11 | MASTER-SAAO | (04h 40m 53.02s , -30d 01m 20.5s) | C | 60 | 16.9 | 119074 | 2020-08-03 00:39:51 | MASTER-SAAO | (04h 38m 38.04s , -32d 00m 48.7s) | C | 60 | 17.3 | 119074 | 2020-08-03 00:39:51 | MASTER-SAAO | (04h 46m 55.19s , -31d 59m 37.1s) | C | 60 | 16.9 | 119154 | 2020-08-03 00:41:10 | MASTER-SAAO | (04h 45m 03.41s , -34d 01m 59.9s) | C | 60 | 17.8 | 119154 | 2020-08-03 00:41:10 | MASTER-SAAO | (04h 53m 32.11s , -34d 00m 47.6s) | C | 60 | 17.5 | 119234 | 2020-08-03 00:42:30 | MASTER-SAAO | (04h 40m 59.17s , -29d 59m 21.2s) | C | 60 | 17.0 | Filter C is a clear (unfiltred) band. The observation and reduction will continue. The message may be cited.
GCN 28197 table
GRB_name GRB200801B
GCN_number 28197
Detection_method AstroSat CZTI
Circular_text TITLE: GCN CIRCULAR NUMBER: 28197 SUBJECT: GRB 200801B: AstroSat CZTI detection DATE: 20/08/03 04:37:13 GMT FROM: Soumya Gupta at IUCAA/ASTROSAT S. Gupta, V. Sharma and D. Bhattacharya (IUCAA), V. Bhalerao (IIT-B), A. R. Rao (IUCAA/TIFR) and S. Vadawale (PRL) report on behalf of the AstroSat CZTI collaboration: Analysis of AstroSat CZTI data showed a weak detection of a long GRB 200716A, which was also detected by Fermi GBM (GCN #28184) and BALROG (Biltzinge B. et al., GCN #28185) and Global MASTER-Net (Lipunov V. et al., GCN #28195). The source was clearly detected in the 40-200 keV energy range. The light curve showed multiple peaks of emission with the strongest peak at 2020-08-01 15:35:48.939 UT. The measured peak count rate associated with the burst is 112 +/- 16 cts/s above the background in the combined data of four quadrants, with a total of 697 +/- 48 cts. The local mean background count rate was 420 +/- 2 cts/s. Using cumulative rates, we measure a T90 of 17.08 +/- 0.47 s. It was also clearly detected in the CsI anticoincidence (Veto) detector in the 100-500 keV energy range. The light curve showed multiple peaks of emission with the strongest peak at 2020-08-01 15:35:45.558 UT. The measured peak count rate is 327 +/- 37 cts/s above the background in the combined Veto data of four quadrants, with a total of 1598 +/- 87 cts. The local mean background count rate was 1709 +/- 4 cts/s. We measure a T90 of 16.17 +/- 0.26 s from the cumulative Veto light curve. 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.