TITLE:   GCN CIRCULAR
NUMBER:  31377
SUBJECT: GRB 220103A: Fermi GBM Final Real-time Localization
DATE:    22/01/03 21:13:33 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 21:03:12 UT on 3 Jan 2022, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 220103A (trigger 662936597.88881 / 220103877).

The on-ground calculated location, using the Fermi GBM trigger data, is RA = 36.9, Dec = -15.7 (J2000 degrees, equivalent to J2000 02h 27m, -15d 41'), with a statistical uncertainty of 8.4 degrees.

The angle from the Fermi LAT boresight is 63.0 degrees.

The skymap can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2022/bn220103877/quicklook/glg_skymap_all_bn220103877.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/bn220103877/quicklook/glg_healpix_all_bn220103877.fit

The GBM light curve can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2022/bn220103877/quicklook/glg_lc_medres34_bn220103877.gif