GCN Circular 28232
Subject
GRB 200809A: Fermi GBM Final Real-time Localization
Date
2020-08-09T05:14:46Z (5 years ago)
From
Fermi GBM Team at MSFC/Fermi-GBM <do_not_reply@GIOC.nsstc.nasa.gov>
The Fermi GBM team reports the detection of a likely LONG GRB
At 05:04:31 UT on 9 Aug 2020, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 200809A (trigger 618642276.564984 / 200809211).
The on-ground calculated location, using the Fermi GBM trigger data, is RA = 205.1, Dec = -26.4 (J2000 degrees, equivalent to J2000 13h 40m, -26d 23'), with a statistical uncertainty of 5.2 degrees.
The angle from the Fermi LAT boresight is 17.0 degrees.
The skymap can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2020/bn200809211/quicklook/glg_skymap_all_bn200809211.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/bn200809211/quicklook/glg_healpix_all_bn200809211.fit
The GBM light curve can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2020/bn200809211/quicklook/glg_lc_medres34_bn200809211.gif