TITLE:   GCN CIRCULAR
NUMBER:  37389
SUBJECT: GRB 240905B: Fermi GBM Final Real-time Localization
DATE:    24/09/05 04:37:48 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 04:27:16 UT on 5 Sep 2024, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 240905B (trigger 747203241.139826 / 240905186).

The on-ground calculated location, using the Fermi GBM trigger data, is RA = 266.1, Dec = 16.9 (J2000 degrees, equivalent to J2000 17h 44m, 16d 53'), with a statistical uncertainty of 1.0 degrees.

The angle from the Fermi LAT boresight is 25.0 degrees.

The skymap can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2024/bn240905186/quicklook/glg_skymap_all_bn240905186.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/bn240905186/quicklook/glg_healpix_all_bn240905186.fit

The GBM light curve can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2024/bn240905186/quicklook/glg_lc_medres34_bn240905186.gif

