TITLE:   GCN CIRCULAR
NUMBER:  35540
SUBJECT: GRB 240115B: Fermi GBM Final Real-time Localization
DATE:    24/01/15 16:56:08 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 16:45:37 UT on 15 Jan 2024, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 240115B (trigger 727029942.62324 / 240115698).

The on-ground calculated location, using the Fermi GBM trigger data, is RA = 188.3, Dec = -34.8 (J2000 degrees, equivalent to J2000 12h 33m, -34d 47'), with a statistical uncertainty of 4.7 degrees.

The angle from the Fermi LAT boresight is 98.0 degrees.

The skymap can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2024/bn240115698/quicklook/glg_skymap_all_bn240115698.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/bn240115698/quicklook/glg_healpix_all_bn240115698.fit

The GBM light curve can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2024/bn240115698/quicklook/glg_lc_medres34_bn240115698.gif