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This page lists all entries on GRB200808A in GRBweb

Summary Fermi GBM GCN 28230 GCN 28231 GCN 28235

Summary table
Variable	Value	Source
GRB_name_Fermi	GRB200808469
T0	11:15:52.029 UTC	Fermi_GBM
ra	20.1100°	Fermi_GBM
decl	55.4500°	Fermi_GBM
pos_error	5.05e+00°	Fermi_GBM
T90	27.904 s	Fermi_GBM
T90_error	1.619 s	Fermi_GBM
T90_start	11:15:52.029 UTC	Fermi_GBM
fluence	3.20e-06 erg/cm²	Fermi_GBM
fluence_error	2.24e-08 erg/cm²	Fermi_GBM
T100	27.904 s
GBM_located	True
mjd	59069.4693521875	Fermi_GBM

Fermi GBM table
GRB_name_Fermi	GRB200808469
trigger_name	bn200808469
ra	20.1100°
decl	55.4500°
pos_error	5.05e+00°
datum	2020-08-08
t_trigger	11:15:57.405 UTC
T90	27.904 s
T90_error	1.619 s
T90_start	11:15:52.029 UTC
fluence	3.20e-06 erg/cm²
fluence_error	2.24e-08 erg/cm²
flux_1024	2.88e+00 erg/cm²/s
flux_1024_error	2.09e-01 erg/cm²/s
flux_1024_time	4.93e+00 erg/cm²/s
flux_64	4.12e+00 erg/cm²/s
flux_64_error	9.91e-01 erg/cm²/s

GCN 28230 table
GRB_name	GRB200808A
GCN_number	28230
Detection_method	Fermi GBM final loc
t_trigger	11:15:57 UTC
ra	20.1000°
decl	55.5000°
Circular_text	TITLE: GCN CIRCULAR NUMBER: 28230 SUBJECT: GRB 200808A: Fermi GBM Final Real-time Localization DATE: 20/08/08 11:26:13 GMT FROM: Fermi GBM Team at MSFC/Fermi-GBM The Fermi GBM team reports the detection of a likely LONG GRB At 11:15:57 UT on 8 Aug 2020, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 200808A (trigger 618578162.404866 / 200808469). The on-ground calculated location, using the Fermi GBM trigger data, is RA = 20.1, Dec = 55.5 (J2000 degrees, equivalent to J2000 01h 20m, 55d 30'), with a statistical uncertainty of 5.3 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/bn200808469/quicklook/glg_skymap_all_bn200808469.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/bn200808469/quicklook/glg_healpix_all_bn200808469.fit The GBM light curve can be found here: https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2020/bn200808469/quicklook/glg_lc_medres34_bn200808469.gif

GCN 28231 table
GRB_name	GRB200808A
GCN_number	28231
Detection_method	Fermi GBM Other
Circular_text	TITLE: GCN CIRCULAR NUMBER: 28231 SUBJECT: Fermi GRB 200808A: Global MASTER-Net observations report DATE: 20/08/08 15:45:09 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-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 200808A ( Fermi GBM team, GCN 28230) errorbox 15558 sec after notice time and 15585 sec after trigger time at 2020-08-08 15:35:43 UT, with upper limit up to 15.1 mag. The observations began at zenith distance = 48 deg. The sun altitude is -19.8 deg. The galactic latitude b = 2 deg., longitude l = 125 deg. Real time updated cover map and OT discovered available here: https://master.sai.msu.ru/site/master2/observ.php?id=1415866 We obtain a following upper limits. Tmid-T0 | Date Time | Site | Coord (J2000) |Filt.| Expt. | Limit| Comment _________|_____________________|_____________________|____________________________________|_____|_______|_______|________ 15616 | 2020-08-08 15:35:43 | MASTER-Tunka | (01h 17m 33.52s , +55d 38m 40.5s) | C | 60 | 15.1 | Filter C is a clear (unfiltred) band. The observation and reduction will continue. The message may be cited.

GCN 28235 table
GRB_name	GRB200808A
GCN_number	28235
Detection_method	Fermi GBM Other
Circular_text	TITLE: GCN CIRCULAR NUMBER: 28235 SUBJECT: GRB 200808A: AGILE detection DATE: 20/08/09 13:27:57 GMT FROM: Alessandro Ursi at INAF/IAPS A. Ursi (INAF/IAPS), C. Pittori (SSDC, and INAF/OAR), M. Tavani (INAF/IAPS, and Univ. Roma Tor Vergata), C. Casentini (INAF/IAPS), A. Argan, M. Cardillo, Y. Evangelista, G. Piano (INAF/IAPS), F. Lucarelli, F. Verrecchia (SSDC, and INAF/OAR), A. Bulgarelli, V. Fioretti, F. Fuschino, N. Parmiggiani (INAF/OAS-Bologna), M. Marisaldi (INAF/OAS-Bologna, and Bergen University), M. Pilia, A. Trois (INAF/OA-Cagliari), I. Donnarumma (ASI), F. Longo (Univ. Trieste and INFN Trieste), A. Giuliani (INAF/IASF-Mi), report on behalf of the AGILE Team: The AGILE satellite detected emission most likely associated with the long burst GRB 200808A reported by Fermi-GBM (GCN #28230). The event is visible in the scientific ratemeters of the SuperAGILE detector (SA; 18-60 keV), starting at T0 = 2020-08-08 11:15:05 (UT). The SA light curve shows two separate emission episodes about 250 s apart. The first episode lasted about 27 s and released ~4350 counts; the second episode lasted about 50 s and released ~7900 counts in the detector, above a background rate of 60 Hz. The event has an off-axis angle of about 40 degrees. The SA light curve can be found at: http://www.agilescienceapp.it/notices/GRB200808A_AGILE_RMs.png . No detection is visible in the scientific ratemeters of the MiniCALorimeter (MCAL; 0.4-100 MeV). Additional analysis of AGILE data is in progress.