TITLE:   GCN CIRCULAR
NUMBER:  31039
SUBJECT: GRB 211104A: Fermi GBM Final Real-time Localization
DATE:    21/11/04 18:56:35 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 SHORT GRB

At 18:46:10 UT on 4 Nov 2021, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 211104A (trigger 657744375.805276 / 211104782).

The on-ground calculated location, using the Fermi GBM trigger data, is RA = 16.9, Dec = 17.5 (J2000 degrees, equivalent to J2000 01h 07m, 17d 30'), with a statistical uncertainty of 22.2 degrees.

The angle from the Fermi LAT boresight is 45.0 degrees.

The skymap can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2021/bn211104782/quicklook/glg_skymap_all_bn211104782.png

The HEALPix FITS file, including the estimated localization systematic, can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2021/bn211104782/quicklook/glg_healpix_all_bn211104782.fit

The GBM light curve can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2021/bn211104782/quicklook/glg_lc_medres34_bn211104782.gif