TITLE:   GCN CIRCULAR
NUMBER:  44447
SUBJECT: GRB 260502A: Fermi GBM Final Localization
DATE:    26/05/03 05:20:13 GMT
FROM:    Rushikesh Sonawane  at IISER TVM <rushikesh23@iisertvm.ac.in>

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

"At 05:01:00.25 UT on 02 May 2026, the Fermi Gamma-ray Burst Monitor (GBM)
triggered and located GRB 260502A (trigger 799390865/260502209).

The on-ground calculated location, using the Fermi GBM trigger data,
is RA =  283.76, Dec = 57.62 (J2000 degrees, equivalent to J2000 18h 55m, +57d 37′), 
with a statistical uncertainty of 13.77 degrees.

The angle from the Fermi LAT boresight is 23 degrees.

The skymap can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2026/bn260502209/quicklook/glg_skymap_all_bn260502209.png

The HEALPix FITS file, including the estimated localization systematic, can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2026/bn260502209/quicklook/glg_healpix_all_bn260502209.fit

The GBM light curve can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2026/bn260502209/quicklook/glg_lc_medres34_bn260502209.gif"