TITLE:   GCN CIRCULAR
NUMBER:  37881
SUBJECT: GRB 241025B: Fermi GBM Final Localization
DATE:    24/10/25 16:51:42 GMT
FROM:    Lorenzo Scotton at UAH <lscottongcn@outlook.com>

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

"At 13:06:36.09 UT on 25 October 2024, the Fermi Gamma-ray Burst Monitor (GBM)
triggered and located GRB 241025B (trigger 751554401/241025546).

The on-ground calculated location, using the Fermi GBM trigger data,
is RA = 254.69, Dec = 9.07 (J2000 degrees, equivalent to J2000 16h 58m, +9d 4'),
with a statistical uncertainty of 2.53 degrees.

The angle from the Fermi LAT boresight is 89 degrees.

The skymap can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2024/bn241025546/quicklook/glg_skymap_all_bn241025546.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/bn241025546/quicklook/glg_healpix_all_bn241025546.fit

The GBM light curve can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2024/bn241025546/quicklook/glg_lc_medres34_bn241025546.gif"