TITLE: GCN CIRCULAR NUMBER: 25601 SUBJECT: GRB 190901A: Fermi GBM Final Real-time Localization DATE: 19/09/01 21:31:54 GMT FROM: Fermi GBM Team at MSFC/Fermi-GBM The Fermi GBM team reports the detection of a likely LONG GRB At 21:21:49 UT on 1 Sep 2019, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 190901A (trigger 589065714.612092 / 190901890). The on-ground calculated location, using the Fermi GBM trigger data, is RA = 220.3, Dec = 0.9 (J2000 degrees, equivalent to J2000 14h 41m, 0d 54'), with a statistical uncertainty of 1.0 degrees. The angle from the Fermi LAT boresight is 85.0 degrees. The skymap can be found here: http://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2019/bn190901890/quicklook/glg_skymap_all_bn190901890.png The HEALPix FITS file, including the estimated localization systematic, can be found here: http://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2019/bn190901890/quicklook/glg_healpix_all_bn190901890.fit The GBM light curve can be found here: http://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2019/bn190901890/quicklook/glg_lc_medres34_bn190901890.gif