TITLE:   GCN CIRCULAR
NUMBER:  28232
SUBJECT: GRB 200809A: Fermi GBM Final Real-time Localization
DATE:    20/08/09 05:14:46 GMT
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