GCN Circular 34842
Subject
GRB 231019A: Fermi GBM Final Real-time Localization
Date
2023-10-19T17:20:27Z (a year 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 17:09:58 UT on 19 Oct 2023, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 231019A (trigger 719428203.333452 / 231019715).
The on-ground calculated location, using the Fermi GBM trigger data, is RA = 343.1, Dec = 45.7 (J2000 degrees, equivalent to J2000 22h 52m, 45d 42'), with a statistical uncertainty of 7.2 degrees.
The angle from the Fermi LAT boresight is 92.0 degrees.
The skymap can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2023/bn231019715/quicklook/glg_skymap_all_bn231019715.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/bn231019715/quicklook/glg_healpix_all_bn231019715.fit
The GBM light curve can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2023/bn231019715/quicklook/glg_lc_medres34_bn231019715.gif