TITLE: GCN CIRCULAR NUMBER: 27909 SUBJECT: GRB 200609A: Fermi GBM Final Real-time Localization DATE: 20/06/09 09:17:24 GMT FROM: Fermi GBM Team at MSFC/Fermi-GBM The Fermi GBM team reports the detection of a likely LONG GRB At 09:06:59 UT on 9 Jun 2020, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 200609A (trigger 613386424.308736 / 200609380). The on-ground calculated location, using the Fermi GBM trigger data, is RA = 16.3, Dec = 67.4 (J2000 degrees, equivalent to J2000 01h 05m, 67d 24'), with a statistical uncertainty of 1.4 degrees. The angle from the Fermi LAT boresight is 150.0 degrees. The skymap can be found here: https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2020/bn200609380/quicklook/glg_skymap_all_bn200609380.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/bn200609380/quicklook/glg_healpix_all_bn200609380.fit The GBM light curve can be found here: https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2020/bn200609380/quicklook/glg_lc_medres34_bn200609380.gif