GCN Circular 34255
Subject
GRB 230725A: Fermi GBM Final Real-time Localization
Date
2023-07-25T10:43:21Z (9 months ago)
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 SHORT GRB
At 10:32:50 UT on 25 Jul 2023, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 230725A (trigger 711973975.87891 / 230725439).
The on-ground calculated location, using the Fermi GBM trigger data, is RA = 207.2, Dec = 4.9 (J2000 degrees, equivalent to J2000 13h 48m, 4d 54'), with a statistical uncertainty of 4.5 degrees.
The angle from the Fermi LAT boresight is 31.0 degrees.
The skymap can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2023/bn230725439/quicklook/glg_skymap_all_bn230725439.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/bn230725439/quicklook/glg_healpix_all_bn230725439.fit
The GBM light curve can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2023/bn230725439/quicklook/glg_lc_medres34_bn230725439.gif
