TITLE:   GCN CIRCULAR
NUMBER:  35967
SUBJECT: GRB 240320A: Fermi GBM Final Real-time Localization
DATE:    24/03/20 17:40:23 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 LONG GRB

At 17:29:47 UT on 20 Mar 2024, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 240320A (trigger 732648592.559252 / 240320729).

The on-ground calculated location, using the Fermi GBM trigger data, is RA = 150.8, Dec = 63.4 (J2000 degrees, equivalent to J2000 10h 03m, 63d 23'), with a statistical uncertainty of 14.5 degrees.

The angle from the Fermi LAT boresight is 55.0 degrees.

The skymap can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2024/bn240320729/quicklook/glg_skymap_all_bn240320729.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/bn240320729/quicklook/glg_healpix_all_bn240320729.fit

The GBM light curve can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2024/bn240320729/quicklook/glg_lc_medres34_bn240320729.gif