TITLE: GCN CIRCULAR NUMBER: 27412 SUBJECT: GRB 200318A: Fermi GBM Final Real-time Localization DATE: 20/03/18 22:45:44 GMT FROM: Fermi GBM Team at MSFC/Fermi-GBM The Fermi GBM team reports the detection of a likely LONG GRB At 22:35:27 UT on 18 Mar 2020, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 200318A (trigger 606263732.221512 / 200318941). The on-ground calculated location, using the Fermi GBM trigger data, is RA = 123.4, Dec = 59.1 (J2000 degrees, equivalent to J2000 08h 13m, 59d 06'), with a statistical uncertainty of 1.0 degrees. The angle from the Fermi LAT boresight is 14.0 degrees. The skymap can be found here: https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2020/bn200318941/quicklook/glg_skymap_all_bn200318941.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/bn200318941/quicklook/glg_healpix_all_bn200318941.fit The GBM light curve can be found here: https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2020/bn200318941/quicklook/glg_lc_medres34_bn200318941.gif