GRB200311A

This page lists all entries on GRB200311A in GRBweb

Summary Fermi GBM IPN GCN 27363 GCN 27365 GCN 27370 GCN 27371 GCN 27381 GCN 27398

Summary table
Variable Value Source
GRB_name_Fermi GRB200311636
T0 15:16:12 UTC GCN_circulars,Fermi GBM final loc
ra 209.2458° IPN
decl -50.0500° IPN
pos_error 2.00e+00° IPN
T90 52.481 s Fermi_GBM
T90_error 0.81 s Fermi_GBM
T90_start 15:16:13.984 UTC Fermi_GBM
fluence 4.25e-05 erg/cm² Fermi_GBM
fluence_error 1.28e-07 erg/cm² Fermi_GBM
T100 54.465 s
GBM_located False
mjd 58919.63625 GCN_circulars,Fermi GBM final loc
Fermi GBM table
GRB_name_Fermi GRB200311636
trigger_name bn200311636
ra 203.9900°
decl -49.6800°
pos_error 2.60e+00°
datum 2020-03-11
t_trigger 15:16:12.928 UTC
T90 52.481 s
T90_error 0.81 s
T90_start 15:16:13.984 UTC
fluence 4.25e-05 erg/cm²
fluence_error 1.28e-07 erg/cm²
flux_1024 1.12e+01 erg/cm²/s
flux_1024_error 4.65e-01 erg/cm²/s
flux_1024_time 9.92e-01 erg/cm²/s
flux_64 1.90e+01 erg/cm²/s
flux_64_error 2.31e+00 erg/cm²/s
IPN table
GRB_name GRB200311A
ra 209.2458°
decl -50.0500°
pos_error 2.00e+00°
GCN 27363 table
GRB_name GRB200311A
GCN_number 27363
Detection_method Fermi GBM final loc
t_trigger 15:16:12 UTC
ra 204.0000°
decl -49.7000°
Circular_text TITLE: GCN CIRCULAR NUMBER: 27363 SUBJECT: GRB 200311A: Fermi GBM Final Real-time Localization DATE: 20/03/11 15:24:19 GMT FROM: Fermi GBM Team at MSFC/Fermi-GBM The Fermi GBM team reports the detection of a likely LONG GRB At 15:16:12 UT on 11 Mar 2020, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 200311A (trigger 605632577.928052 / 200311636). The on-ground calculated location, using the Fermi GBM trigger data, is RA = 204.0, Dec = -49.7 (J2000 degrees, equivalent to J2000 13h 35m, -49d 42'), with a statistical uncertainty of 1.0 degrees. The angle from the Fermi LAT boresight is 122.0 degrees. The skymap can be found here: https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2020/bn200311636/quicklook/glg_skymap_all_bn200311636.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/bn200311636/quicklook/glg_healpix_all_bn200311636.fit The GBM light curve can be found here: https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2020/bn200311636/quicklook/glg_lc_medres34_bn200311636.gif
GCN 27365 table
GRB_name GRB200311A
GCN_number 27365
Detection_method Fermi GBM Other
Circular_text TITLE: GCN CIRCULAR NUMBER: 27365 SUBJECT: GRB 200311A: AGILE/MCAL and scientific ratemeters observations DATE: 20/03/11 18:54:28 GMT FROM: Alessandro Ursi at INAF/IAPS A. Ursi (INAF/IAPS), F. Longo (Univ. Trieste and INFN Trieste), M. Pilia (INAF/OA-Cagliari), C. Pittori, F. Verrecchia (SSDC, and INAF/OAR), M. Tavani (INAF/IAPS, and Univ. Roma Tor Vergata), A. Argan, M. Cardillo, C. Casentini, Y. Evangelista, G. Piano (INAF/IAPS), F. Lucarelli (SSDC, and INAF/OAR), A. Bulgarelli, V. Fioretti, F. Fuschino, N. Parmiggiani (INAF/OAS-Bologna), M. Marisaldi (INAF/OAS-Bologna, and Bergen University), A. Trois (INAF/OA-Cagliari), I. Donnarumma (ASI), A. Giuliani (INAF/IASF-Mi), report on behalf of the AGILE Team: The AGILE satellite detected the long burst GRB 200311A reported by Fermi/GBM (GCN #27363), that also triggered the automatic AGILE Mini-CALorimeter (MCAL) GRB alert Notice (ID 511024575), published at: https://gcn.gsfc.nasa.gov/agile_mcal.html. The event is visible in the scientific ratemeters (RMs) of the Anti-Coincidence (AC, 50-200 keV) and MCAL (0.4-100 MeV) detectors. The burst light curve shows a multi-peaked profile, lasting ~25 s and releasing ~33000 counts in the MCAL RMs. The ratemeters light curves can be found at http://www.agilescienceapp.it/notices/GRB_066883_511024575.756958_RM.png. The event also triggered an MCAL data acquisition at T0 = 2020-03-11 15:16:15.75 +/- 0.01 s (UTC), lasting ~10 s and releasing a total number of ~7550 counts in the detector, above a background rate of ~700 Hz. The MCAL light curve can be found at: http://www.agilescienceapp.it/notices/GRB_066883_511024575.756958.png. The AGILE-MCAL detector is a CsI detector with a 4 pi FoV, sensitive in the energy range 0.4-100 MeV. Additional analysis of AGILE data is in progress.
GCN 27370 table
GRB_name GRB200311A
GCN_number 27370
Detection_method Fermi GBM Other
Circular_text TITLE: GCN CIRCULAR NUMBER: 27370 SUBJECT: Fermi trigger No 605632577: Global MASTER-Net observations report DATE: 20/03/12 04:15:19 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-OAFA robotic telescope (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L) located in Argentina (OAFA observatory of San Juan National University) started inspect of the Fermi GRB 200311A ( Fermi GBM team, GCN 27363) errorbox 30385 sec after trigger time at 2020-03-11 23:42:38 UT, with upper limit up to 17.9 mag. Observations started at twilight. The observations began at zenith distance = 76 deg. The sun altitude is -10.6 deg. MASTER-IAC robotic telescope located in Spain (IAC Teide Observatory) started inspect of the Fermi GRB 200311A errorbox 39226 sec after trigger time at 2020-03-12 02:09:59 UT, with upper limit up to 16.7 mag. The observations began at zenith distance = 79 deg. The sun altitude is -61.8 deg. The galactic latitude b = 12 deg., longitude l = 311 deg. Real time updated cover map and OT discovered available here: https://master.sai.msu.ru/site/master2/observ.php?id=1311002 We obtain a following upper limits. Tmid-T0 | Date Time | Site | Coord (J2000) |Filt.| Expt. | Limit| Comment _________|_____________________|_____________________|____________________________________|_____|_______|_______|________ 30416 | 2020-03-11 23:42:38 | MASTER-OAFA | (13h 33m 58.49s , -49d 55m 05.7s) | C | 60 | 14.5 | 30781 | 2020-03-11 23:48:43 | MASTER-OAFA | (13h 33m 50.99s , -49d 54m 03.4s) | C | 60 | 15.4 | 30874 | 2020-03-11 23:50:17 | MASTER-OAFA | (13h 46m 37.64s , -49d 54m 28.4s) | C | 60 | 15.7 | 30965 | 2020-03-11 23:51:48 | MASTER-OAFA | (13h 25m 57.05s , -47d 55m 01.5s) | C | 60 | 16.0 | 31058 | 2020-03-11 23:53:20 | MASTER-OAFA | (13h 37m 43.69s , -47d 55m 58.6s) | C | 60 | 15.6 | 31240 | 2020-03-11 23:56:23 | MASTER-OAFA | (13h 31m 03.43s , -51d 54m 32.2s) | C | 60 | 16.7 | 31423 | 2020-03-11 23:59:25 | MASTER-OAFA | (13h 21m 40.70s , -49d 53m 46.7s) | C | 60 | 17.0 | 31515 | 2020-03-12 00:00:58 | MASTER-OAFA | (13h 46m 16.75s , -49d 54m 16.0s) | C | 60 | 16.3 | 31614 | 2020-03-12 00:02:36 | MASTER-OAFA | (13h 37m 59.02s , -47d 54m 07.6s) | C | 60 | 17.0 | 31705 | 2020-03-12 00:04:08 | MASTER-OAFA | (13h 31m 01.12s , -51d 54m 57.3s) | C | 60 | 17.4 | 31796 | 2020-03-12 00:05:39 | MASTER-OAFA | (13h 21m 45.26s , -49d 54m 46.0s) | C | 60 | 17.6 | 31887 | 2020-03-12 00:07:10 | MASTER-OAFA | (13h 44m 02.54s , -51d 55m 02.3s) | C | 60 | 17.5 | 31979 | 2020-03-12 00:08:41 | MASTER-OAFA | (13h 49m 49.11s , -47d 54m 17.3s) | C | 60 | 17.5 | 32252 | 2020-03-12 00:13:15 | MASTER-OAFA | (13h 44m 02.79s , -51d 53m 12.0s) | C | 60 | 17.8 | 32440 | 2020-03-12 00:16:22 | MASTER-OAFA | (13h 49m 55.52s , -47d 53m 33.4s) | C | 60 | 17.9 | 39256 | 2020-03-12 02:09:59 | MASTER-IAC | (13h 21m 25.21s , -49d 54m 32.2s) | C | 60 | 16.7 | 39861 | 2020-03-12 02:20:04 | MASTER-IAC | (13h 21m 22.67s , -49d 54m 43.2s) | C | 60 | 16.7 | 41037 | 2020-03-12 02:39:39 | MASTER- | (13h 45m 21.20s , -49d 52m 09.1s) | C | 60 | 17.1 | 41037 | 2020-03-12 02:39:39 | MASTER- | (13h 34m 14.56s , -49d 53m 01.5s) | C | 60 | 17.3 | 41130 | 2020-03-12 02:41:12 | MASTER- | (13h 36m 48.75s , -47d 53m 11.9s) | C | 60 | 15.7 | 41130 | 2020-03-12 02:41:12 | MASTER- | (13h 26m 08.50s , -47d 54m 05.6s) | C | 60 | 15.6 | 41222 | 2020-03-12 02:42:44 | MASTER- | (13h 29m 49.21s , -51d 53m 59.9s) | C | 60 | 18.3 | 41315 | 2020-03-12 02:44:17 | MASTER- | (13h 44m 16.14s , -51d 54m 56.8s) | C | 60 | 16.7 | 41407 | 2020-03-12 02:45:49 | MASTER- | (13h 45m 22.86s , -49d 52m 17.4s) | C | 60 | 16.1 | 41407 | 2020-03-12 02:45:49 | MASTER- | (13h 34m 17.05s , -49d 53m 07.7s) | C | 60 | 16.4 | 41499 | 2020-03-12 02:47:22 | MASTER- | (13h 26m 05.07s , -47d 54m 54.6s) | C | 60 | 13.5 | 41500 | 2020-03-12 02:47:22 | MASTER- | (13h 36m 45.10s , -47d 54m 02.3s) | C | 60 | 13.8 | 41592 | 2020-03-12 02:48:54 | MASTER- | (13h 29m 54.43s , -51d 52m 21.2s) | C | 60 | 17.4 | 41685 | 2020-03-12 02:50:27 | MASTER- | (13h 44m 09.15s , -51d 54m 02.6s) | C | 60 | 18.0 | 41777 | 2020-03-12 02:52:00 | MASTER- | (13h 49m 56.03s , -47d 53m 15.9s) | C | 60 | 16.7 | 42147 | 2020-03-12 02:58:10 | MASTER- | (13h 49m 57.70s , -47d 53m 23.4s) | C | 60 | 15.5 | 43079 | 2020-03-12 03:13:41 | MASTER- | (13h 20m 33.19s , -49d 52m 24.0s) | C | 60 | 16.5 | 43634 | 2020-03-12 03:22:56 | MASTER- | (13h 20m 30.39s , -49d 52m 30.0s) | C | 60 | 16.1 | Filter C is a clear (unfiltred) band. The observation and reduction will continue. The message may be cited.
GCN 27371 table
GRB_name GRB200311A
GCN_number 27371
Detection_method AstroSat CZTI
Circular_text TITLE: GCN CIRCULAR NUMBER: 27371 SUBJECT: GRB 200311A: AstroSat CZTI detection DATE: 20/03/12 08:29:18 GMT FROM: Soumya Gupta at IUCAA/ASTROSAT S. Gupta, V. Sharma, A. Vibhute 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 200311A, which was also detected by Fermi GBM (GCN #27363), AGILE/MCAL (Ursi A. et al., GCN #27365) and Global MASTER-Net (Lipunov V. et al., GCN #27370). The source was clearly detected in the 40-200 keV energy range. The light curve shows multiple peaks of emission with the strongest peak at 2020-03-11 15:16:13.516 UT. The measured peak count rate associated with the burst is 958 +/- 38.4 cts/s above the background in the combined data of four quadrants, with a total of 10660 +/- 42.9 cts. The local mean background count rate was 532 +/- 1.0 cts/s. Using cumulative rates, we measure a T90 of 30.5 +/- 0.03 s. In preliminary analysis, we find that 1186 Compton events are associated with this event. 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.
GCN 27381 table
GRB_name GRB200311A
GCN_number 27381
Detection_method IPN Triangulation
t_trigger 15:16:13 UTC
ra 209.2450°
decl -50.0540°
Circular_text TITLE: GCN CIRCULAR NUMBER: 27381 SUBJECT: IPN triangulation of GRB 200311A DATE: 20/03/13 12:49:49 GMT FROM: Dmitry Svinkin at Ioffe Institute IPN triangulation of GRB 200311A D. Svinkin, S. Golenetskii, R. Aptekar, D. Frederiks, A. Ridnaia, and T. Cline on behalf of the Konus-Wind team, K. Hurley, on behalf of the IPN, A. Goldstein, M. S. Briggs, and C. Wilson-Hodge on behalf of the Fermi GBM team, and A. von Kienlin, X. Zhang, A. Rau, V. Savchenko, E. Bozzo, and C. Ferrigno, on behalf of the INTEGRAL SPI-ACS GRB team, report: The long-duration GRB 200311A (Fermi-GBM detection: The Fermi GBM team, GCN Circ. 27363; AGILE-MCAL detection: Ursi et al., GCN Circ. 27365; AstroSat-CZTI detection: Gupta et al., GCN Circ. 27371) was detected by Fermi (GBM trigger 605632577), Konus-Wind, INTEGRAL (SPI-ACS), AGILE-MCAL, and AstroSat-CZTI at about 54973 s UT (15:16:13). We have triangulated it to a preliminary, 3 sigma error box whose coordinates are: --------------------------------------------- RA(2000), deg Dec(2000), deg --------------------------------------------- Center: 209.245 (13h 56m 59s) -50.054 (-50d 03' 15") Corners: 206.898 (13h 47m 35s) -52.496 (-52d 29' 46") 211.898 (14h 07m 35s) -47.578 (-47d 34' 42") 211.296 (14h 05m 11s) -47.578 (-47d 34' 39") 206.215 (13h 44m 52s) -52.473 (-52d 28' 23") --------------------------------------------- The error box area is 2.0 sq. deg, and its maximum dimension is 6.1 deg (the minimum one is 21 arcmin). The Sun distance was 117 deg. This box may be improved. The IPN localization is consistent with, but reduces the area of, the Fermi-GBM final position (GCN Circ. 27363). A triangulation map is posted at http://www.ioffe.ru/LEA/GRBs/GRB200311_T54974/IPN The Konus-Wind time history and spectrum will be given in a forthcoming GCN Circular.
GCN 27398 table
GRB_name GRB200311A
GCN_number 27398
Detection_method Konus-Wind Det
t_trigger 15:16:14.737 UTC
Circular_text TITLE: GCN CIRCULAR NUMBER: 27398 SUBJECT: Konus-Wind observation of GRB 200311A DATE: 20/03/17 11:51:37 GMT FROM: Anna Ridnaia at Ioffe Institute A. Ridnaia, S. Golenetskii, R. Aptekar, D. Frederiks, M. Ulanov, D. Svinkin, A. Tsvetkova, A. Lysenko, and T. Cline on behalf of the Konus-Wind team, report: The long-duration GRB 200311A (Fermi-GBM detection: The Fermi GBM team, GCN Circ. 27363; AGILE-MCAL detection: Ursi et al., GCN Circ. 27365; AstroSat-CZTI detection: Gupta et al., GCN Circ. 27371; IPN triangulation: Svinkin et al., GCN Circ. 27381) triggered Konus-Wind at T0=54974.737 s UT (15:16:14.737). The burst light curve shows a multipeaked structure which starts at ~T0-0.8 s and has a total duration of ~65.2 s. The emission is seen up to ~8 MeV. As observed by Konus-Wind, the burst had a fluence of 8.84(-0.76,+0.89)x10^-5 erg/cm2, and a 64-ms peak flux, measured from T0+1.792 s, of 1.56(-0.28,+0.28)x10^-5 erg/cm2/s (both in the 20 keV - 10 MeV energy range). The time-averaged spectrum of the burst (measured from T0 to T0+64.512 s) is best fit in the 20 keV - 8 MeV range by a power law with exponential cutoff model: dN/dE ~ (E^alpha)*exp(-E*(2+alpha)/Ep) with alpha = -0.93(-0.07,+0.08) and Ep = 854(-112,+142) keV (chi2 = 113/81 dof). Fitting by a GRB (Band) model yields the same alpha and Ep, and an upper limit on the high energy photon index: beta < -2.1 (chi2 = 112/80 dof). The spectrum near the maximum count rate (measured from T0+0.256 to T0+7.168 s) is best fit in the 20 keV - 8 MeV range by a power law with exponential cutoff model with alpha = -0.57(-0.08,+0.09) and Ep = 957(-98,+114) keV (chi2 = 88/80 dof). Fitting by a GRB (Band) model yields the same alpha and Ep, and an upper limit on the high energy photon index: beta < -2.2 (chi2 = 86/79 dof). The Konus-Wind light curve of this GRB is available at http://www.ioffe.ru/LEA/GRBs/GRB200311_T54974/ All the quoted errors are at the 90% confidence level. All the quoted values are preliminary.