TITLE:   GCN CIRCULAR
NUMBER:  35850
SUBJECT: GRB 240303B: Fermi GBM Final Localization
DATE:    24/03/03 13:22:09 GMT
FROM:    rachel.hamburg@ijclab.in2p3.fr

The Fermi GBM team reports the detection of a likely LONG GRB

"At 12:18:51.24 UT on 03 March 2024, the Fermi Gamma-ray Burst Monitor (GBM)
triggered and located GRB 240303B (trigger 731161136 / 240303513).

The on-ground calculated location, using the Fermi GBM trigger data,
is RA = 304.49, Dec = 1.26 (J2000 degrees, equivalent to J2000 20h 17m, +1d 15'),
with a statistical uncertainty of 1.00 degrees.

The angle from the Fermi LAT boresight is 96 degrees.

The skymap can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2024/bn240303513/quicklook/glg_skymap_all_bn240303513.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/bn240303513/quicklook/glg_healpix_all_bn240303513.fit

The GBM light curve can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2024/bn240303513/quicklook/glg_lc_medres34_bn240303513.gif"