TITLE:   GCN CIRCULAR
NUMBER:  41395
SUBJECT: GRB 250815A: Fermi GBM Final Localization
DATE:    25/08/15 15:51:47 GMT
FROM:    Utkarsh Pathak at IIT Bombay <utkarshpathak.07@gmail.com>

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

"At 11:49:10.84 UT on 15 August 2025, the Fermi Gamma-ray Burst Monitor (GBM)
triggered and located GRB 250815A (trigger 776951355/250815492). The duration
and the spectrum suggest an SGR flare, but it is not near the galactic
plane, so further follow-up is encouraged.

The on-ground calculated location, using the Fermi GBM trigger data,
is RA = 221.57, Dec = -1.10 (J2000 degrees, equivalent to J2000 14h 46m, -1d 6'),
with a statistical uncertainty of 7.79 degrees.

The angle from the Fermi LAT boresight is 30 degrees.

The skymap can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2025/bn250815492/quicklook/glg_skymap_all_bn250815492.png

The HEALPix FITS file, including the estimated localization systematic, can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2025/bn250815492/quicklook/glg_healpix_all_bn250815492.fit

The GBM light curve can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2025/bn250815492/quicklook/glg_lc_medres34_bn250815492.gif"