TITLE: GCN CIRCULAR NUMBER: 26624 SUBJECT: GRB 200101A: Fermi GBM Final Real-time Localization DATE: 20/01/01 20:49:47 GMT FROM: Fermi GBM Team at MSFC/Fermi-GBM The Fermi GBM team reports the detection of a likely LONG GRB At 20:39:26 UT on 1 Jan 2020, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 200101A (trigger 599603971.45143 / 200101861). The on-ground calculated location, using the Fermi GBM trigger data, is RA = 257.4, Dec = -35.1 (J2000 degrees, equivalent to J2000 17h 09m, -35d 06'), with a statistical uncertainty of 1.0 degrees. The angle from the Fermi LAT boresight is 61.0 degrees. The skymap can be found here: https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2020/bn200101861/quicklook/glg_skymap_all_bn200101861.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/bn200101861/quicklook/glg_healpix_all_bn200101861.fit The GBM light curve can be found here: https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2020/bn200101861/quicklook/glg_lc_medres34_bn200101861.gif