TITLE: GCN CIRCULAR NUMBER: 44741 SUBJECT: GRB 260530A: Fermi GBM Final Real-time Localization DATE: 26/05/30 06:21:32 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 06:10:52 UT on 30 May 2026, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 260530A (trigger 801814257.752724 / 260530258). The on-ground calculated location, using the Fermi GBM trigger data, is RA = 93.0, Dec = 12.7 (J2000 degrees, equivalent to J2000 06h 12m, 12d 41'), with a statistical uncertainty of 6.4 degrees. The angle from the Fermi LAT boresight is 87.0 degrees. The skymap can be found here: https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2026/bn260530258/q... The HEALPix FITS file, including the estimated localization systematic, can be found here: https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2026/bn260530258/q... The GBM light curve can be found here: https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2026/bn260530258/q... View this GCN Circular online at https://gcn.nasa.gov/circulars/44741. --- To unsubscribe, open this link in a web browser: https://gcn.nasa.gov/unsubscribe/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6InZzbmV0LW...