TITLE:   GCN CIRCULAR
NUMBER:  34080
SUBJECT: GRB 230625A: Fermi GBM Final Real-time Localization
DATE:    23/06/25 18:34:49 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 18:24:10 UT on 25 Jun 2023, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 230625A (trigger 709410255.711038 / 230625767).

The on-ground calculated location, using the Fermi GBM trigger data, is RA = 321.2, Dec = -18.7 (J2000 degrees, equivalent to J2000 21h 24m, -18d 41'), with a statistical uncertainty of 3.5 degrees.

The angle from the Fermi LAT boresight is 69.0 degrees.

The skymap can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2023/bn230625767/quicklook/glg_skymap_all_bn230625767.png

The HEALPix FITS file, including the estimated localization systematic, can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2023/bn230625767/quicklook/glg_healpix_all_bn230625767.fit

The GBM light curve can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2023/bn230625767/quicklook/glg_lc_medres34_bn230625767.gif

