TITLE:   GCN CIRCULAR
NUMBER:  40886
SUBJECT: GRB 250702D: Fermi GBM Final Localization Correction
DATE:    25/07/02 15:19:41 GMT
FROM:    eliza.neights@gmail.com

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

"At 13:09:02.03 UT on 02 July 2025, the Fermi Gamma-ray Burst Monitor (GBM)
triggered and located GRB 250702D (trigger 773154547/250702548).
This trigger was initially classified as Below horizon by the flight software,
but is in fact a GRB.

The on-ground calculated location, using the Fermi GBM trigger data,
is RA = 292.86, Dec = 3.55 (J2000 degrees, equivalent to J2000 19h 31m, +3d 32'),
with a statistical uncertainty of 14.69 degrees.

The angle from the Fermi LAT boresight is 92 degrees.

The skymap can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2025/bn250702548/quicklook/glg_skymap_all_bn250702548.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/bn250702548/quicklook/glg_healpix_all_bn250702548.fit

The GBM light curve can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2025/bn250702548/quicklook/glg_lc_medres34_bn250702548.gif"