TITLE: GCN CIRCULAR NUMBER: 27323 SUBJECT: GRB 200306B: Fermi GBM Final Real-time Localization DATE: 20/03/06 22:35:47 GMT FROM: Fermi GBM Team at MSFC/Fermi-GBM The Fermi GBM team reports the detection of a likely SHORT GRB At 22:25:25 UT on 6 Mar 2020, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 200306B (trigger 605226330.32671 / 200306934). The on-ground calculated location, using the Fermi GBM trigger data, is RA = 267.0, Dec = 24.5 (J2000 degrees, equivalent to J2000 17h 48m, 24d 30'), with a statistical uncertainty of 135.1 degrees. The angle from the Fermi LAT boresight is 4.0 degrees. The skymap can be found here: https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2020/bn200306934/quicklook/glg_skymap_all_bn200306934.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/bn200306934/quicklook/glg_healpix_all_bn200306934.fit The GBM light curve can be found here: https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2020/bn200306934/quicklook/glg_lc_medres34_bn200306934.gif