{
  "bibcode": "2021GCN.30890....1H",
  "body": "K. Hurley, on behalf of the IPN,\n\nI. G. Mitrofanov, D. V. Golovin, A. S. Kozyrev, M. L. Litvak,\nand A. B. Sanin, on behalf of the HEND-Odyssey GRB team,\n\nA. Ridnaia, S. Golenetskii, D. Frederiks, D. Svinkin,\nA. Lysenko, and T. Cline on behalf of the Konus-Wind team,\n\nA. Goldstein, M. S. Briggs, and C. Wilson-Hodge\non behalf of the Fermi-GBM team,\n\nA. von Kienlin, X. Zhang, A. Rau, V. Savchenko, E. Bozzo,\nand C. Ferrigno, on behalf of the INTEGRAL SPI-ACS GRB team,\n\nS. Barthelmy, J. Cummings, H. Krimm, D. Palmer, and A. Tohuvavohu\non behalf of the Swift-BAT team, and\n\nW. Boynton, C. Fellows, K. Harshman, H. Enos, and R. Starr,\non behalf of the GRS-Odyssey GRB team, report:\n\nThe long-duration GRB 210925B\nwas detected by Fermi (GBM trigger 654225613), Konus-Wind,\nMars-Odyssey (HEND), INTEGRAL (SPI-ACS), and Swift-BAT\nat about 4809 s UT (01:20:09).\nThe burst was outside the coded field of view of the BAT.\n\nWe have triangulated it to a preliminary, 3 sigma error box\nwhose coordinates are:\n ---------------------------------------------\n  RA(2000), deg                 Dec(2000), deg\n ---------------------------------------------\n Center:\n   48.817 (03h 15m 16s) -52.863 (-52d 51' 45\")\n Corners:\n   47.551 (03h 10m 12s) -53.723 (-53d 43' 21\")\n   50.006 (03h 20m 01s) -52.058 (-52d 03' 29\")\n   50.027 (03h 20m 06s) -51.978 (-51d 58' 41\")\n   47.579 (03h 10m 19s) -53.644 (-53d 38' 39\")\n ---------------------------------------------\nThe error box area is 335 sq. arcmin, and its maximum\ndimension is 2.3 deg (the minimum one is 2.5 arcmin).\nThe Sun distance was 113 deg.\n\nThis box may be improved.\n\nA triangulation map is posted at\nhttp://www.ioffe.ru/LEA/GRBs/GRB210925_T04810/IPN/\n\nThe time history and spectrum will be given in forthcoming GCN Circulars.",
  "circularId": 30890,
  "createdOn": 1632766126000,
  "email": "ridnaia@mail.ioffe.ru",
  "subject": "IPN triangulation of GRB 210925B",
  "submitter": "Anna Ridnaia at Ioffe Institute  <ridnaia@mail.ioffe.ru>",
  "eventId": "GRB 210925B"
}