TITLE:   GCN CIRCULAR
NUMBER:  37273
SUBJECT: GRB 240825A: Fermi GBM Final Real-time Localization
DATE:    24/08/25 16:03:37 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 15:53:00 UT on 25 Aug 2024, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 240825A (trigger 746293985.085054 / 240825662).

The on-ground calculated location, using the Fermi GBM trigger data, is RA = 341.6, Dec = 5.9 (J2000 degrees, equivalent to J2000 22h 46m, 5d 54'), with a statistical uncertainty of 1.0 degrees.

The angle from the Fermi LAT boresight is 47.0 degrees.

The skymap can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2024/bn240825662/quicklook/glg_skymap_all_bn240825662.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/bn240825662/quicklook/glg_healpix_all_bn240825662.fit

The GBM light curve can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2024/bn240825662/quicklook/glg_lc_medres34_bn240825662.gif