TITLE:   GCN CIRCULAR
NUMBER:  34332
SUBJECT: GRB 230804A: Fermi GBM Final Real-time Localization
DATE:    23/08/04 06:49:23 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 06:38:55 UT on 4 Aug 2023, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 230804A (trigger 712823940.838898 / 230804277).

The on-ground calculated location, using the Fermi GBM trigger data, is RA = 199.8, Dec = -45.2 (J2000 degrees, equivalent to J2000 13h 19m, -45d 12'), with a statistical uncertainty of 16.6 degrees.

The angle from the Fermi LAT boresight is 71.0 degrees.

The skymap can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2023/bn230804277/quicklook/glg_skymap_all_bn230804277.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/bn230804277/quicklook/glg_healpix_all_bn230804277.fit

The GBM light curve can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2023/bn230804277/quicklook/glg_lc_medres34_bn230804277.gif