GCN Circular 33195
Subject
GRB 230118A: Fermi GBM Final Real-time Localization
Date
2023-01-19T00:04:31Z (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 23:54:10 UT on 18 Jan 2023, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 230118A (trigger 695778855.155984 / 230118996).
The on-ground calculated location, using the Fermi GBM trigger data, is RA = 330.8, Dec = 20.0 (J2000 degrees, equivalent to J2000 22h 03m, 20d 00'), with a statistical uncertainty of 11.0 degrees.
The angle from the Fermi LAT boresight is 52.0 degrees.
The skymap can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2023/bn230118996/quicklook/glg_skymap_all_bn230118996.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/bn230118996/quicklook/glg_healpix_all_bn230118996.fit
The GBM light curve can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2023/bn230118996/quicklook/glg_lc_medres34_bn230118996.gif