TITLE:   GCN CIRCULAR
NUMBER:  35881
SUBJECT: GRB 240305C: Fermi GBM Final Real-time Localization
DATE:    24/03/05 22:27:23 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 SHORT GRB

At 22:16:36 UT on 5 Mar 2024, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 240305C (trigger 731369801.549802 / 240305928).

The on-ground calculated location, using the Fermi GBM trigger data, is RA = 261.1, Dec = -3.2 (J2000 degrees, equivalent to J2000 17h 24m, -3d 12'), with a statistical uncertainty of 9.1 degrees.

The angle from the Fermi LAT boresight is 74.0 degrees.

The skymap can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2024/bn240305928/quicklook/glg_skymap_all_bn240305928.png

The HEALPix FITS file, including the estimated localization systematic, can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2024/bn240305928/quicklook/glg_healpix_all_bn240305928.fit

The GBM light curve can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2024/bn240305928/quicklook/glg_lc_medres34_bn240305928.gif