{
  "submitter": "A. Holzmann Airasca at University of Trento and INFN Bari <a.holzmannairasca@unitn.it>",
  "eventId": "GRB 250828A",
  "bibcode": "2025GCN.41575....1F",
  "body": "The Fermi GBM team reports the detection of a likely LONG GRB\n\n\"At 12:00:02.52 UT on 28 August 2025, the Fermi Gamma-ray Burst Monitor (GBM)\ntriggered and located GRB 250828A (trigger 778075207/250828500).\nThis trigger was initially classified as Unreliable location by the flight software,\nbut is in fact a GRB.\n\nThe on-ground calculated location, using the Fermi GBM trigger data,\nis RA = 220.44, Dec = -69.39 (J2000 degrees, equivalent to J2000 14h 41m, -69d 23m'),\nwith a statistical uncertainty of 3.08 degrees.\n\nThe angle from the Fermi LAT boresight is 14 degrees.\n\nThe skymap can be found here:\nhttps://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2025/bn250828500/quicklook/glg_skymap_all_bn250828500.png\n\nThe HEALPix FITS file, including the estimated localization systematic, can be found here:\nhttps://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2025/bn250828500/quicklook/glg_healpix_all_bn250828500.fit\n\nThe GBM light curve can be found here:\nhttps://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2025/bn250828500/quicklook/glg_lc_medres34_bn250828500.gif\"",
  "subject": "GRB 250828A: Fermi GBM Final Localization",
  "circularId": 41575,
  "submittedHow": "web",
  "createdOn": 1756389126734,
  "format": "text/plain"
}