{
  "circularId": 41803,
  "createdOn": 1757615280562,
  "subject": "GRB 250910C: Fermi GBM Final Localization Correction",
  "bibcode": "2025GCN.41803....1F",
  "submittedHow": "web",
  "eventId": "GRB 250910C",
  "submitter": "eliza.neights@gmail.com",
  "body": "The Fermi GBM team reports the detection of a likely LONG GRB\n\n\"At 23:50:11.34 UT on 10 September 2025, the Fermi Gamma-ray Burst Monitor (GBM)\ntriggered and located GRB 250910C (trigger 779241016/250910993).\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 = 47.58, Dec = -35.77 (J2000 degrees, equivalent to J2000 3h 10m, -35d 46'),\nwith a statistical uncertainty of 10.95 degrees.\n\nThe angle from the Fermi LAT boresight is 46 degrees.\n\nThe skymap can be found here:\nhttps://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2025/bn250910993/quicklook/glg_skymap_all_bn250910993.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/bn250910993/quicklook/glg_healpix_all_bn250910993.fit\n\nThe GBM light curve can be found here:\nhttps://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2025/bn250910993/quicklook/glg_lc_medres34_bn250910993.gif\"",
  "format": "text/plain"
}