{
  "subject": "GRB 240821B: Fermi GBM Final Localization",
  "eventId": "GRB 240821B",
  "circularId": 37224,
  "body": "The Fermi GBM team reports the detection of a likely LONG GRB\n\n\"At 17:17:36.47 UT on 21 August 2024, the Fermi Gamma-ray Burst Monitor (GBM)\ntriggered and located GRB 240821B (trigger 745953461/240821721).\n\nThe on-ground calculated location, using the Fermi GBM trigger data,\nis RA = 228.98, Dec = 77.40 (J2000 degrees, equivalent to J2000 15h 16m, 77d 24'),\nwith a statistical uncertainty of 3.28 degrees.\n\nThe angle from the Fermi LAT boresight is 64 degrees.\n\nThe skymap can be found here:\nhttps://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2024/bn240821721/quicklook/glg_skymap_all_bn240821721.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/2024/bn240821721/quicklook/glg_healpix_all_bn240821721.fit\n\nThe GBM light curve can be found here:\nhttps://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2024/bn240821721/quicklook/glg_lc_medres34_bn240821721.gif\"",
  "submittedHow": "web",
  "submitter": "Sarah Dalessi at UAH <sd0104@uah.edu>",
  "bibcode": "2024GCN.37224....1F",
  "createdOn": 1724275025227,
  "format": "text/plain"
}