TITLE: GCN CIRCULAR NUMBER: 28972 SUBJECT: GRB 201201A: Fermi GBM Final Real-time Localization DATE: 20/12/01 03:03:37 GMT FROM: Fermi GBM Team at MSFC/Fermi-GBM The Fermi GBM team reports the detection of a likely LONG GRB At 02:52:14 UT on 1 Dec 2020, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 201201A (trigger 628483939.910616 / 201201120). The on-ground calculated location, using the Fermi GBM trigger data, is RA = 307.5, Dec = 20.8 (J2000 degrees, equivalent to J2000 20h 30m, 20d 48'), with a statistical uncertainty of 8.8 degrees. The angle from the Fermi LAT boresight is 122.0 degrees. The skymap can be found here: https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2020/bn201201120/quicklook/glg_skymap_all_bn201201120.png The HEALPix FITS file, including the estimated localization systematic, can be found here: https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2020/bn201201120/quicklook/glg_healpix_all_bn201201120.fit The GBM light curve can be found here: https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2020/bn201201120/quicklook/glg_lc_medres34_bn201201120.gif