GCN Circular 32423
Subject
GRB 220724A: Fermi GBM Final Real-time Localization
Date
2022-07-24T23:53:28Z (2 years 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 LONG GRB
At 23:43:03 UT on 24 Jul 2022, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 220724A (trigger 680398988.456506 / 220724988).
The on-ground calculated location, using the Fermi GBM trigger data, is RA = 238.5, Dec = -19.2 (J2000 degrees, equivalent to J2000 15h 54m, -19d 11'), with a statistical uncertainty of 8.0 degrees.
The angle from the Fermi LAT boresight is 86.0 degrees.
The skymap can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2022/bn220724988/quicklook/glg_skymap_all_bn220724988.png
The HEALPix FITS file, including the estimated localization systematic, can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2022/bn220724988/quicklook/glg_healpix_all_bn220724988.fit
The GBM light curve can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2022/bn220724988/quicklook/glg_lc_medres34_bn220724988.gif