GRB200421A

This page lists all entries on GRB200421A in GRBweb

Summary Fermi GBM GCN 27616 GCN 27618

Summary table
Variable Value Source
GRB_name_Fermi GRB200421865
T0 20:45:58.958 UTC Fermi_GBM
ra 164.0100° Fermi_GBM
decl 63.8300° Fermi_GBM
pos_error 2.96e+00° Fermi_GBM
T90 67.073 s Fermi_GBM
T90_error 2.611 s Fermi_GBM
T90_start 20:45:58.958 UTC Fermi_GBM
fluence 1.00e-05 erg/cm² Fermi_GBM
fluence_error 5.72e-08 erg/cm² Fermi_GBM
T100 67.073 s
GBM_located True
mjd 58960.86526571759 Fermi_GBM
Fermi GBM table
GRB_name_Fermi GRB200421865
trigger_name bn200421865
ra 164.0100°
decl 63.8300°
pos_error 2.96e+00°
datum 2020-04-21
t_trigger 20:45:59.726 UTC
T90 67.073 s
T90_error 2.611 s
T90_start 20:45:58.958 UTC
fluence 1.00e-05 erg/cm²
fluence_error 5.72e-08 erg/cm²
flux_1024 3.80e+00 erg/cm²/s
flux_1024_error 2.45e-01 erg/cm²/s
flux_1024_time 2.64e+01 erg/cm²/s
flux_64 6.25e+00 erg/cm²/s
flux_64_error 1.31e+00 erg/cm²/s
GCN 27616 table
GRB_name GRB200421A
GCN_number 27616
Detection_method Fermi GBM final loc
t_trigger 20:45:59 UTC
ra 164.0000°
decl 63.8000°
Circular_text TITLE: GCN CIRCULAR NUMBER: 27616 SUBJECT: GRB 200421A: Fermi GBM Final Real-time Localization DATE: 20/04/21 20:56:21 GMT FROM: Fermi GBM Team at MSFC/Fermi-GBM The Fermi GBM team reports the detection of a likely LONG GRB At 20:45:59 UT on 21 Apr 2020, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 200421A (trigger 609194764.72639 / 200421865). The on-ground calculated location, using the Fermi GBM trigger data, is RA = 164.0, Dec = 63.8 (J2000 degrees, equivalent to J2000 10h 56m, 63d 47'), with a statistical uncertainty of 2.3 degrees. The angle from the Fermi LAT boresight is 14.0 degrees. The skymap can be found here: https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2020/bn200421865/quicklook/glg_skymap_all_bn200421865.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/bn200421865/quicklook/glg_healpix_all_bn200421865.fit The GBM light curve can be found here: https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2020/bn200421865/quicklook/glg_lc_medres34_bn200421865.gif
GCN 27618 table
GRB_name GRB200421A
GCN_number 27618
Detection_method Fermi GBM Other
Circular_text TITLE: GCN CIRCULAR NUMBER: 27618 SUBJECT: Fermi GRB 200421A: Global MASTER-Net observations report DATE: 20/04/21 23:30:16 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-Tavrida robotic telescope (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L) located in Russia (Lomonosov MSU, SAI Crimea astronomical station) started inspect of the Fermi GRB 200421A ( Fermi GBM team, GCN 27616) errorbox 48 sec after notice time and 75 sec after trigger time at 2020-04-21 20:47:15 UT, with upper limit up to 20.4 mag. The observations began at zenith distance = 30 deg. The sun altitude is -32.5 deg. MASTER-IAC robotic telescope located in Spain (IAC Teide Observatory) started inspect of the Fermi GRB 200421A errorbox 548 sec after notice time and 575 sec after trigger time at 2020-04-21 20:55:35 UT, with upper limit up to 19.5 mag. The observations began at zenith distance = 37 deg. The sun altitude is -18.3 deg. The galactic latitude b = 49 deg., longitude l = 142 deg. Real time updated cover map and OT discovered available here: https://master.sai.msu.ru/site/master2/observ.php?id=1342104 We obtain a following upper limits. Tmid-T0 | Date Time | Site | Coord (J2000) |Filt.| Expt. | Limit| Comment _________|_____________________|_____________________|____________________________________|_____|_______|_______|________ 86 | 2020-04-21 20:47:15 | MASTER-Tavrida | (10h 27m 01.45s , +63d 21m 13.8s) | C | 20 | 18.5 | 111 | 2020-04-21 20:47:15 | MASTER-Tavrida | (10h 27m 01.45s , +63d 21m 13.8s) | C | 70 | 19.4 | Coadd 126 | 2020-04-21 20:47:55 | MASTER-Tavrida | (10h 27m 05.58s , +63d 22m 60.0s) | C | 20 | 18.5 | 172 | 2020-04-21 20:48:36 | MASTER-Tavrida | (10h 26m 57.61s , +63d 22m 04.3s) | C | 30 | 18.9 | 227 | 2020-04-21 20:49:26 | MASTER-Tavrida | (10h 26m 58.60s , +63d 23m 04.7s) | C | 40 | 19.1 | 287 | 2020-04-21 20:49:26 | MASTER-Tavrida | (10h 26m 58.61s , +63d 23m 04.8s) | C | 160 | 20.1 | Coadd 292 | 2020-04-21 20:50:27 | MASTER-Tavrida | (10h 27m 03.30s , +63d 22m 04.8s) | C | 50 | 19.3 | 372 | 2020-04-21 20:51:37 | MASTER-Tavrida | (10h 26m 57.52s , +63d 21m 04.7s) | C | 70 | 19.4 | 458 | 2020-04-21 20:53:07 | MASTER-Tavrida | (10h 20m 09.48s , +64d 11m 08.1s) | C | 60 | 19.4 | 538 | 2020-04-21 20:54:28 | MASTER-Tavrida | (10h 29m 11.17s , +66d 11m 39.8s) | C | 60 | 19.4 | 636 | 2020-04-21 20:55:35 | MASTER-IAC | (10h 55m 15.49s , +63d 58m 18.2s) | P| | 120 | 18.7 | 796 | 2020-04-21 20:55:35 | MASTER-IAC | (10h 55m 15.49s , +63d 58m 18.2s) | P| | 440 | 19.5 | Coadd 636 | 2020-04-21 20:55:35 | MASTER-IAC | (10h 53m 42.39s , +64d 02m 08.5s) | P- | 120 | 18.6 | 796 | 2020-04-21 20:55:35 | MASTER-IAC | (10h 53m 42.40s , +64d 02m 08.5s) | P- | 440 | 19.3 | Coadd 649 | 2020-04-21 20:55:48 | MASTER-Tavrida | (11h 04m 51.95s , +64d 00m 51.3s) | C | 120 | 19.9 | 809 | 2020-04-21 20:55:48 | MASTER-Tavrida | (11h 04m 51.95s , +64d 00m 51.3s) | C | 440 | 20.4 | Coadd 799 | 2020-04-21 20:58:08 | MASTER-Tavrida | (11h 04m 53.31s , +64d 01m 51.7s) | C | 140 | 19.9 | 822 | 2020-04-21 20:58:31 | MASTER-IAC | (10h 53m 34.48s , +64d 01m 32.8s) | P- | 140 | 18.6 | 822 | 2020-04-21 20:58:31 | MASTER-IAC | (10h 55m 07.45s , +63d 57m 41.8s) | P| | 140 | 18.8 | 980 | 2020-04-21 21:00:49 | MASTER-Tavrida | (11h 04m 58.03s , +64d 00m 51.9s) | C | 180 | 19.9 | 1041 | 2020-04-21 21:01:51 | MASTER-IAC | (10h 55m 08.43s , +63d 58m 41.6s) | P| | 180 | 19.0 | 1180 | 2020-04-21 21:04:10 | MASTER-Tavrida | (11h 04m 51.51s , +63d 59m 51.9s) | C | 180 | 20.0 | 1249 | 2020-04-21 21:05:18 | MASTER-IAC | (10h 55m 14.12s , +63d 57m 41.0s) | P| | 180 | 19.0 | 1249 | 2020-04-21 21:05:18 | MASTER-IAC | (10h 53m 40.98s , +64d 01m 31.9s) | P- | 180 | 18.7 | 2125 | 2020-04-21 21:20:54 | MASTER-Tavrida | (10h 20m 07.10s , +64d 10m 36.5s) | C | 60 | 19.4 | 2206 | 2020-04-21 21:22:15 | MASTER-Tavrida | (10h 38m 25.64s , +64d 11m 49.7s) | C | 60 | 19.3 | 2286 | 2020-04-21 21:23:36 | MASTER-Tavrida | (10h 29m 12.61s , +66d 10m 45.5s) | C | 60 | 19.4 | 2367 | 2020-04-21 21:24:56 | MASTER-Tavrida | (10h 48m 50.67s , +66d 09m 58.5s) | C | 60 | 19.4 | 2447 | 2020-04-21 21:26:16 | MASTER-Tavrida | (10h 56m 47.88s , +64d 11m 45.0s) | C | 60 | 19.4 | 2930 | 2020-04-21 21:34:19 | MASTER-Tavrida | (10h 38m 24.85s , +64d 10m 50.0s) | C | 60 | 19.3 | 3010 | 2020-04-21 21:35:39 | MASTER-Tavrida | (10h 48m 50.84s , +66d 11m 59.2s) | C | 60 | 19.3 | 3090 | 2020-04-21 21:36:59 | MASTER-Tavrida | (10h 56m 50.75s , +64d 10m 60.0s) | C | 60 | 19.4 | 3121 | 2020-04-21 21:37:30 | MASTER-IAC | (10h 37m 09.03s , +62d 09m 29.6s) | C | 60 | 18.5 | 3121 | 2020-04-21 21:37:30 | MASTER-IAC | (10h 54m 32.50s , +62d 04m 53.2s) | C | 60 | 18.6 | 3171 | 2020-04-21 21:38:20 | MASTER-Tavrida | (11h 15m 03.11s , +64d 10m 07.5s) | C | 60 | 19.2 | 3246 | 2020-04-21 21:39:35 | MASTER-IAC | (10h 57m 10.05s , +66d 09m 45.2s) | C | 60 | 18.6 | 3246 | 2020-04-21 21:39:35 | MASTER-IAC | (11h 17m 14.87s , +66d 05m 01.4s) | C | 60 | 18.6 | 3251 | 2020-04-21 21:39:40 | MASTER-Tavrida | (11h 21m 28.36s , +62d 11m 55.1s) | C | 60 | 19.0 | 3331 | 2020-04-21 21:41:01 | MASTER-Tavrida | (11h 33m 28.87s , +64d 12m 03.1s) | C | 60 | 19.2 | 3366 | 2020-04-21 21:41:35 | MASTER-IAC | (11h 02m 17.17s , +60d 11m 59.9s) | C | 60 | 18.3 | 3412 | 2020-04-21 21:42:21 | MASTER-Tavrida | (10h 39m 35.72s , +60d 11m 41.9s) | C | 60 | 18.8 | 3490 | 2020-04-21 21:43:39 | MASTER-IAC | (10h 37m 11.63s , +62d 09m 50.5s) | C | 60 | 18.6 | 3490 | 2020-04-21 21:43:39 | MASTER-IAC | (10h 54m 35.39s , +62d 05m 11.9s) | C | 60 | 18.8 | 3492 | 2020-04-21 21:43:41 | MASTER-Tavrida | (11h 15m 10.34s , +64d 11m 06.1s) | C | 60 | 19.2 | 3572 | 2020-04-21 21:45:02 | MASTER-Tavrida | (11h 21m 24.55s , +62d 10m 05.1s) | C | 60 | 19.1 | 3611 | 2020-04-21 21:45:40 | MASTER-IAC | (11h 17m 14.08s , +66d 06m 38.0s) | C | 60 | 18.5 | 3611 | 2020-04-21 21:45:40 | MASTER-IAC | (10h 57m 07.85s , +66d 11m 22.5s) | C | 60 | 18.5 | 3733 | 2020-04-21 21:47:42 | MASTER-Tavrida | (11h 33m 26.04s , +64d 11m 52.1s) | C | 60 | 19.3 | 3893 | 2020-04-21 21:50:23 | MASTER-Tavrida | (10h 39m 41.31s , +60d 11m 11.5s) | C | 60 | 19.1 | 3974 | 2020-04-21 21:51:43 | MASTER-Tavrida | (10h 55m 38.78s , +60d 10m 49.8s) | C | 60 | 19.2 | 4296 | 2020-04-21 21:57:05 | MASTER-Tavrida | (10h 55m 41.75s , +60d 11m 32.5s) | C | 60 | 19.2 | 4617 | 2020-04-21 22:02:26 | MASTER-Tavrida | (10h 30m 05.72s , +62d 09m 26.1s) | C | 60 | 19.1 | 5019 | 2020-04-21 22:09:08 | MASTER-Tavrida | (10h 30m 05.66s , +62d 10m 23.8s) | C | 60 | 19.1 | 7164 | 2020-04-21 22:44:53 | MASTER-Tavrida | (10h 47m 09.38s , +62d 11m 33.3s) | C | 60 | 18.9 | 7341 | 2020-04-21 22:47:50 | MASTER-Tavrida | (11h 08m 38.99s , +66d 10m 25.9s) | C | 60 | 19.0 | 7422 | 2020-04-21 22:49:11 | MASTER-Tavrida | (11h 11m 43.05s , +60d 10m 03.3s) | C | 60 | 18.9 | 7502 | 2020-04-21 22:50:31 | MASTER-Tavrida | (10h 47m 16.18s , +62d 10m 58.4s) | C | 60 | 19.1 | 7583 | 2020-04-21 22:51:52 | MASTER-Tavrida | (11h 04m 16.48s , +62d 10m 38.2s) | C | 60 | 19.1 | 7663 | 2020-04-21 22:53:12 | MASTER-Tavrida | (11h 08m 33.22s , +66d 11m 44.3s) | C | 60 | 19.1 | 7744 | 2020-04-21 22:54:33 | MASTER-Tavrida | (11h 28m 25.22s , +66d 11m 00.6s) | C | 60 | 19.0 | 7824 | 2020-04-21 22:55:54 | MASTER-Tavrida | (11h 11m 39.42s , +60d 09m 39.3s) | C | 60 | 19.0 | 7985 | 2020-04-21 22:58:34 | MASTER-Tavrida | (11h 04m 19.01s , +62d 11m 03.3s) | C | 60 | 19.0 | 8066 | 2020-04-21 22:59:55 | MASTER-Tavrida | (11h 28m 21.20s , +66d 10m 09.3s) | C | 60 | 19.1 | Filter C is a clear (unfiltred) band. The observation and reduction will continue. The message may be cited.