TITLE:   GCN CIRCULAR
NUMBER:  41135
SUBJECT: GRB 250722A: Fermi GBM Final Real-time Localization
DATE:    25/07/22 11:19:47 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 11:09:07 UT on 22 Jul 2025, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 250722A (trigger 774875352.002704 / 250722465).

The on-ground calculated location, using the Fermi GBM trigger data, is RA = 313.5, Dec = -63.3 (J2000 degrees, equivalent to J2000 20h 53m, -63d 17'), with a statistical uncertainty of 12.6 degrees.

The angle from the Fermi LAT boresight is 2.0 degrees.

The skymap can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2025/bn250722465/quicklook/glg_skymap_all_bn250722465.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/bn250722465/quicklook/glg_healpix_all_bn250722465.fit

The GBM light curve can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2025/bn250722465/quicklook/glg_lc_medres34_bn250722465.gif