TITLE: GCN CIRCULAR NUMBER: 36606 SUBJECT: GRB 240603C: Fermi GBM Final Real-time Localization DATE: 24/06/03 10:19:42 GMT FROM: Fermi GBM Team at MSFC/Fermi-GBM <do_not_reply@GIOC.nsstc.nasa.gov> The Fermi GBM team reports the detection of a likely LONG GRB At 10:09:11 UT on 3 Jun 2024, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 240603C (trigger 739102156.345702 / 240603423). The on-ground calculated location, using the Fermi GBM trigger data, is RA = 272.6, Dec = -35.8 (J2000 degrees, equivalent to J2000 18h 10m, -35d 47'), with a statistical uncertainty of 2.9 degrees. The angle from the Fermi LAT boresight is 84.0 degrees. The skymap can be found here: https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2024/bn240603423/q... The HEALPix FITS file, including the estimated localization systematic, can be found here: https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2024/bn240603423/q... The GBM light curve can be found here: https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2024/bn240603423/q... View this GCN Circular online at https://gcn.nasa.gov/circulars/36606. --- To unsubscribe, open this link in a web browser: https://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6InZzbmV0LW...