TITLE:   GCN CIRCULAR
NUMBER:  31509
SUBJECT: GRB 220120A: Fermi GBM Final Localization
DATE:    22/01/20 22:40:12 GMT
FROM:    Joshua Wood at MSFC/Fermi-GBM  <joshua.r.wood@nasa.gov>

The Fermi GBM team reports the detection of a likely SHORT GRB

At 14:51:55.92 UT on 20 Jan 2022, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 220120A (trigger 664383120 / 220120619).

The on-ground calculated location, using the Fermi GBM trigger data, is RA = 249.7, Dec = -45.6 (J2000 degrees, equivalent to J2000 16h 38m, -45d 36'), with a statistical uncertainty of 8.4 degrees.

The angle from the Fermi LAT boresight is 74.0 degrees.

The skymap can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2022/bn220120619/quicklook/glg_skymap_all_bn220120619.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/bn220120619/quicklook/glg_healpix_all_bn220120619.fit

The GBM light curve can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2022/bn220120619/quicklook/glg_lc_medres34_bn220120619.gif