TITLE:   GCN CIRCULAR
NUMBER:  35885
SUBJECT: GRB 240306A: Fermi GBM Final Real-time Localization
DATE:    24/03/06 06:56:45 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 LONG GRB

At 06:45:50 UT on 6 Mar 2024, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 240306A (trigger 731400355.209016 / 240306282).

The on-ground calculated location, using the Fermi GBM trigger data, is RA = 20.6, Dec = -42.0 (J2000 degrees, equivalent to J2000 01h 22m, -42d 00'), with a statistical uncertainty of 3.9 degrees.

The angle from the Fermi LAT boresight is 87.0 degrees.

The skymap can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2024/bn240306282/quicklook/glg_skymap_all_bn240306282.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/bn240306282/quicklook/glg_healpix_all_bn240306282.fit

The GBM light curve can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2024/bn240306282/quicklook/glg_lc_medres34_bn240306282.gif