TITLE: GCN CIRCULAR NUMBER: 28184 SUBJECT: GRB 200801B: Fermi GBM Final Real-time Localization DATE: 20/08/01 15:46:11 GMT FROM: Fermi GBM Team at MSFC/Fermi-GBM The Fermi GBM team reports the detection of a likely LONG GRB At 15:35:46 UT on 1 Aug 2020, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 200801B (trigger 617988951.753576 / 200801650). The on-ground calculated location, using the Fermi GBM trigger data, is RA = 70.5, Dec = -33.1 (J2000 degrees, equivalent to J2000 04h 42m, -33d 06'), with a statistical uncertainty of 1.3 degrees. The angle from the Fermi LAT boresight is 38.0 degrees. The skymap can be found here: https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2020/bn200801650/quicklook/glg_skymap_all_bn200801650.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/bn200801650/quicklook/glg_healpix_all_bn200801650.fit The GBM light curve can be found here: https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2020/bn200801650/quicklook/glg_lc_medres34_bn200801650.gif