GCN Circular 40892
Subject
GRB 250702F: Fermi GBM Final Real-time Localization
Event
Date
2025-07-02T21:17:16Z (2 days ago)
From
Fermi GBM Team at MSFC/Fermi-GBM <do_not_reply@GIOC.nsstc.nasa.gov>
Via
email
The Fermi GBM team reports the detection of a likely LONG GRB
At 21:06:43 UT on 2 Jul 2025, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 250702F (trigger 773183208.102296 / 250702880).
The on-ground calculated location, using the Fermi GBM trigger data, is RA = 215.8, Dec = 16.6 (J2000 degrees, equivalent to J2000 14h 23m, 16d 36'), with a statistical uncertainty of 2.2 degrees.
The angle from the Fermi LAT boresight is 43.0 degrees.
The skymap can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2025/bn250702880/quicklook/glg_skymap_all_bn250702880.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/bn250702880/quicklook/glg_healpix_all_bn250702880.fit
The GBM light curve can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2025/bn250702880/quicklook/glg_lc_medres34_bn250702880.gif