TITLE:   GCN CIRCULAR
NUMBER:  30878
SUBJECT: GRB 210924A: Fermi GBM Final Real-time Localization
DATE:    21/09/24 23:13:09 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 23:02:52 UT on 24 Sep 2021, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 210924A (trigger 654217377.138008 / 210924960).

The on-ground calculated location, using the Fermi GBM trigger data, is RA = 107.1, Dec = 45.3 (J2000 degrees, equivalent to J2000 07h 08m, 45d 17'), with a statistical uncertainty of 10.5 degrees.

The angle from the Fermi LAT boresight is 22.0 degrees.

The skymap can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2021/bn210924960/quicklook/glg_skymap_all_bn210924960.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/bn210924960/quicklook/glg_healpix_all_bn210924960.fit

The GBM light curve can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2021/bn210924960/quicklook/glg_lc_medres34_bn210924960.gif