TITLE:   GCN CIRCULAR
NUMBER:  33156
SUBJECT: GRB 230111A: Fermi GBM Final Real-time Localization
DATE:    23/01/11 19:18:06 GMT
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 19:07:42 UT on 11 Jan 2023, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 230111A (trigger 695156867.898656 / 230111797).

The on-ground calculated location, using the Fermi GBM trigger data, is RA = 316.1, Dec = -22.5 (J2000 degrees, equivalent to J2000 21h 04m, -22d 30'), with a statistical uncertainty of 8.9 degrees.

The angle from the Fermi LAT boresight is 100.0 degrees.

The skymap can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2023/bn230111797/quicklook/glg_skymap_all_bn230111797.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/bn230111797/quicklook/glg_healpix_all_bn230111797.fit

The GBM light curve can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2023/bn230111797/quicklook/glg_lc_medres34_bn230111797.gif