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This page lists all entries on GRB230805A in GRBweb

Summary Fermi GBM GCN 34338 GCN 34344

Summary table
Variable	Value	Source
GRB_name_Fermi	GRB230805303
T0	7:16:10.352 UTC	Fermi_GBM
ra	44.7400°	Fermi_GBM
decl	47.6400°	Fermi_GBM
pos_error	5.51e+00°	Fermi_GBM
T90	59.392 s	Fermi_GBM
T90_error	10.373 s	Fermi_GBM
T90_start	7:16:10.352 UTC	Fermi_GBM
fluence	2.94e-06 erg/cm²	Fermi_GBM
fluence_error	1.64e-07 erg/cm²	Fermi_GBM
T100	59.392 s
GBM_located	True
mjd	60161.30289759259	Fermi_GBM

Fermi GBM table
GRB_name_Fermi	GRB230805303
trigger_name	bn230805303
ra	44.7400°
decl	47.6400°
pos_error	5.51e+00°
datum	2023-08-05
t_trigger	7:16:16.496 UTC
T90	59.392 s
T90_error	10.373 s
T90_start	7:16:10.352 UTC
fluence	2.94e-06 erg/cm²
fluence_error	1.64e-07 erg/cm²
flux_1024	1.70e+00 erg/cm²/s
flux_1024_error	1.03e+00 erg/cm²/s
flux_1024_time	2.52e+01 erg/cm²/s
flux_64	5.14e+00 erg/cm²/s
flux_64_error	2.20e+00 erg/cm²/s

GCN 34338 table
GRB_name	GRB230805A
GCN_number	34338
Detection_method	Fermi GBM final loc
t_trigger	7:16:16 UTC
ra	44.7000°
decl	47.6000°
Circular_text	TITLE: GCN CIRCULAR NUMBER: 34338 SUBJECT: GRB 230805A: Fermi GBM Final Real-time Localization DATE: 23/08/05 07:26:53 GMT FROM: Fermi GBM Team at MSFC/Fermi-GBM The Fermi GBM team reports the detection of a likely LONG GRB At 07:16:16 UT on 5 Aug 2023, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 230805A (trigger 712912581.49606 / 230805303). The on-ground calculated location, using the Fermi GBM trigger data, is RA = 44.7, Dec = 47.6 (J2000 degrees, equivalent to J2000 02h 58m, 47d 36'), with a statistical uncertainty of 6.5 degrees. The angle from the Fermi LAT boresight is 77.0 degrees. The skymap can be found here: https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2023/bn230805303/quicklook/glg_skymap_all_bn230805303.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/bn230805303/quicklook/glg_healpix_all_bn230805303.fit The GBM light curve can be found here: https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2023/bn230805303/quicklook/glg_lc_medres34_bn230805303.gif

GCN 34344 table
GRB_name	GRB230805A
GCN_number	34344
Detection_method	Fermi GBM Other
Circular_text	TITLE: GCN CIRCULAR NUMBER: 34344 SUBJECT: Fermi GRB 230805A: Global MASTER-Net observations report DATE: 23/08/05 20:45:51 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-Tunka robotic telescope (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L) located in Russia (Applied Physics Institute, Irkutsk State University) started inspect of the Fermi GRB 230805A ( Fermi GBM team, GCN 34338) errorbox 23358 sec after notice time and 23391 sec after trigger time at 2023-08-05 13:46:07 UT, with upper limit up to 14.1 mag. Observations started at twilight. The observations began at zenith distance = 76 deg. The sun altitude is -8.4 deg. The galactic latitude b = -9 deg., longitude l = 145 deg. Real time updated cover map and OT discovered available here: https://master.sai.msu.ru/site/master2/observ.php?id=2250244 We obtain a following upper limits. Tmid-T0 | Date Time | Site | Coord (J2000) |Filt.| Expt. | Limit| Comment _________|_____________________|_____________________|____________________________________|_____|_______|_______|________ 23421 | 2023-08-05 13:46:07 | MASTER-Tunka | (02h 45m 41.38s , +46d 10m 48.2s) | C | 60 | 14.1 | Filter C is a clear (unfiltred) band. The observation and reduction will continue. The message may be cited.