TITLE: GCN CIRCULAR NUMBER: 40881 SUBJECT: GRB 250702A: Fermi GBM Final Real-time Localization DATE: 25/07/02 10:04:44 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 09:54:07 UT on 2 Jul 2025, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 250702A (trigger 773142852.561082 / 250702413).

The on-ground calculated location, using the Fermi GBM trigger data, is RA = 317.8, Dec = 48.1 (J2000 degrees, equivalent to J2000 21h 11m, 48d 06'), with a statistical uncertainty of 1.1 degrees.

The angle from the Fermi LAT boresight is 56.0 degrees.

The skymap can be found here: https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2025/bn250702413/q...

The HEALPix FITS file, including the estimated localization systematic, can be found here: https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2025/bn250702413/q...

The GBM light curve can be found here: https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2025/bn250702413/q...

View this GCN Circular online at https://gcn.nasa.gov/circulars/40881. --- To unsubscribe, open this link in a web browser: https://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6InZzbmV0LW...