TITLE: GCN CIRCULAR NUMBER: 31399 SUBJECT: GRB 220107A: Fermi GBM Final Real-time Localization DATE: 22/01/07 14:55:38 GMT FROM: Fermi GBM Team at MSFC/Fermi-GBM The Fermi GBM team reports the detection of a likely LONG GRB At 14:45:31 UT on 7 Jan 2022, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 220107A (trigger 663259536.927164 / 220107615). The on-ground calculated location, using the Fermi GBM trigger data, is RA = 168.2, Dec = 35.0 (J2000 degrees, equivalent to J2000 11h 12m, 35d 00'), with a statistical uncertainty of 1.2 degrees. The angle from the Fermi LAT boresight is 77.0 degrees. The skymap can be found here: https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2022/bn220107615/quicklook/glg_skymap_all_bn220107615.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/bn220107615/quicklook/glg_healpix_all_bn220107615.fit The GBM light curve can be found here: https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2022/bn220107615/quicklook/glg_lc_medres34_bn220107615.gif