GRB230320A

This page lists all entries on GRB230320A in GRBweb

Summary Fermi GBM GCN 33489 GCN 33498

Summary table
Variable Value Source
GRB_name_Fermi GRB230320949
T0 22:46:05.872 UTC Fermi_GBM
ra 253.7000° Fermi_GBM
decl -37.0400° Fermi_GBM
pos_error 8.71e+00° Fermi_GBM
T90 0.832 s Fermi_GBM
T90_error 1.834 s Fermi_GBM
T90_start 22:46:05.872 UTC Fermi_GBM
fluence 1.91e-07 erg/cm² Fermi_GBM
fluence_error 2.21e-08 erg/cm² Fermi_GBM
T100 0.832 s
GBM_located True
mjd 60023.94867907408 Fermi_GBM
Fermi GBM table
GRB_name_Fermi GRB230320949
trigger_name bn230320949
ra 253.7000°
decl -37.0400°
pos_error 8.71e+00°
datum 2023-03-20
t_trigger 22:46:06.192 UTC
T90 0.832 s
T90_error 1.834 s
T90_start 22:46:05.872 UTC
fluence 1.91e-07 erg/cm²
fluence_error 2.21e-08 erg/cm²
flux_1024 2.74e+00 erg/cm²/s
flux_1024_error 4.42e-01 erg/cm²/s
flux_1024_time -4.48e-01 erg/cm²/s
flux_64 9.17e+00 erg/cm²/s
flux_64_error 2.11e+00 erg/cm²/s
GCN 33489 table
GRB_name GRB230320A
GCN_number 33489
Detection_method Fermi GBM final loc
t_trigger 22:46:06 UTC
ra 253.7000°
decl -37.0000°
Circular_text TITLE: GCN CIRCULAR NUMBER: 33489 SUBJECT: GRB 230320A: Fermi GBM Final Real-time Localization DATE: 23/03/20 22:56:34 GMT FROM: Fermi GBM Team at MSFC/Fermi-GBM The Fermi GBM team reports the detection of a likely SHORT GRB At 22:46:06 UT on 20 Mar 2023, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 230320A (trigger 701045171.191836 / 230320949). The on-ground calculated location, using the Fermi GBM trigger data, is RA = 253.7, Dec = -37.0 (J2000 degrees, equivalent to J2000 16h 54m, -37d 00'), with a statistical uncertainty of 15.0 degrees. The angle from the Fermi LAT boresight is 36.0 degrees. The skymap can be found here: https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2023/bn230320949/quicklook/glg_skymap_all_bn230320949.png The HEALPix FITS file, including the estimated localization systematic, can be found here: https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2023/bn230320949/quicklook/glg_healpix_all_bn230320949.fit The GBM light curve can be found here: https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2023/bn230320949/quicklook/glg_lc_medres34_bn230320949.gif
GCN 33498 table
GRB_name GRB230320A
GCN_number 33498
Detection_method Fermi GBM Other
Circular_text TITLE: GCN CIRCULAR NUMBER: 33498 SUBJECT: Fermi GRB 230320A: Global MASTER-Net observations report DATE: 23/03/21 20:15:20 GMT FROM: Vladimir Lipunov at Moscow State U/Krylov Obs V. Lipunov, V.Kornilov, E.Gorbovskoy, K.Zhirkov, N.Tyurina, P.Balanutsa, A.Kuznetsov, D. Vlasenko, G.Antipov, D.Zimnukhov, V.Senik, E.Minkina, A.Chasovnikov, V.Topolev, D.Kuvshinov, D.Cheryasov, Ya.Kechin (Lomonosov Moscow State University, SAI, Physics Department), R. Podesta, C.Lopez, F. Podesta, C.Francile (Observatorio Astronomico Felix Aguilar OAFA), R. Rebolo, M. Serra (The Instituto de Astrofisica de Canarias), D. Buckley (South African Astronomical Observatory), O.A. Gres, N.M. Budnev (Irkutsk State University, API), L.Carrasco, J.R.Valdes, V.Chavushyan, V.M.Patino Alvarez, J.Martinez, A.R.Corella, L.H.Rodriguez (INAOE, Guillermo Haro Astrophysics Observatory), A. Tlatov, D. Dormidontov (Kislovodsk Solar Station of the Pulkovo Observatory), A. Gabovich, V.Yurkov (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 230320A ( Fermi GBM team, GCN 33489) errorbox 76358 sec after notice time and 76390 sec after trigger time at 2023-03-21 19:59:16 UT, with upper limit up to 17.7 mag. The observations began at zenith distance = 78 deg. The sun altitude is -39.5 deg. The galactic latitude b = 4 deg., longitude l = 348 deg. Real time updated cover map and OT discovered available here: https://master.sai.msu.ru/site/master2/observ.php?id=2205279 We obtain a following upper limits. Tmid-T0 | Date Time | Site | Coord (J2000) |Filt.| Expt. | Limit| Comment _________|_____________________|_____________________|____________________________________|_____|_______|_______|________ 76480 | 2023-03-21 19:59:16 | MASTER-SAAO | (16h 32m 24.24s , -47d 25m 16.2s) | C | 180 | 17.7 | Filter C is a clear (unfiltred) band. The observation and reduction will continue. The message may be cited.