GCN Circular 34813
Subject
GRB 231012A: Fermi GBM Final Real-time Localization
Date
2023-10-12T05:42:50Z (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 SHORT GRB
At 05:32:20 UT on 12 Oct 2023, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 231012A (trigger 718781545.556372 / 231012231).
The on-ground calculated location, using the Fermi GBM trigger data, is RA = 29.6, Dec = 19.7 (J2000 degrees, equivalent to J2000 01h 58m, 19d 41'), with a statistical uncertainty of 4.8 degrees.
The angle from the Fermi LAT boresight is 113.0 degrees.
The skymap can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2023/bn231012231/quicklook/glg_skymap_all_bn231012231.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/bn231012231/quicklook/glg_healpix_all_bn231012231.fit
The GBM light curve can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2023/bn231012231/quicklook/glg_lc_medres34_bn231012231.gif