TITLE:   GCN CIRCULAR
NUMBER:  28365
SUBJECT: GRB 200904A: Fermi GBM Final Real-time Localization
DATE:    20/09/04 02:13:11 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 02:02:55 UT on 4 Sep 2020, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 200904A (trigger 620877780.28243 / 200904085).

The on-ground calculated location, using the Fermi GBM trigger data, is RA = 15.8, Dec = -16.0 (J2000 degrees, equivalent to J2000 01h 03m, -16d 00'), with a statistical uncertainty of 11.6 degrees.

The angle from the Fermi LAT boresight is 102.0 degrees.

The skymap can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2020/bn200904085/quicklook/glg_skymap_all_bn200904085.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/bn200904085/quicklook/glg_healpix_all_bn200904085.fit

The GBM light curve can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2020/bn200904085/quicklook/glg_lc_medres34_bn200904085.gif