{
  "bibcode": "2018GCN.22423....1S",
  "body": "D.Svinkin, S. Golenetskii, R. Aptekar, D. Frederiks, A. Kozlova,\nand T. Cline on behalf of the Konus-Wind team,\n\nK. Hurley, on behalf of the IPN,\n\nV. Connaughton, M. S. Briggs, C. Meegan, V. Pelassa,\nand A. Goldstein, on behalf of the Fermi GBM team, and\n\nA. von Kienlin, X. Zhang, A. Rau, V. Savchenko, E. Bozzo,\nand C. Ferrigno, on behalf of the INTEGRAL SPI-ACS GRB team, report:\n\nThe long-duration, very bright GRB 180218A has been detected by\nFermi(GBM; trigger 540659650), Konus-Wind, INTEGRAL(SPI-ACS), and \nSwift(BAT) at about 54845 s UT (15:14:05). The burst was outside the \ncoded field of view of the BAT.\n\nWe have triangulated it to a preliminary, 3 sigma error box whose \ncoordinates are:\n---------------------------------------------\n   RA(2000), deg                 Dec(2000), deg\n  ---------------------------------------------\n  Center:\n    46.279 (03h 05m 07s) +52.589 (+52d 35' 20\")\n  Corners:\n    49.798 (03h 19m 12s) +45.859 (+45d 51' 34\")\n    50.993 (03h 23m 58s) +46.050 (+46d 03' 00\")\n    41.217 (02h 44m 52s) +59.126 (+59d 07' 35\")\n    39.654 (02h 38m 37s) +58.828 (+58d 49' 40\")\n  ---------------------------------------------\nThe error box area is 12.13 sq. deg, and its maximum\ndimension is 14.48 deg (the minimum one is 51 arcmin).\nThe Sun distance was 89 deg.\n\nThis box may be improved.\n\nA triangulation map is posted at\nhttp://www.ioffe.ru/LEA/GRBs/GRB180218_T54845/IPN/\n\nThe time history and spectrum will be given in forthcoming\nGCN Circulars.",
  "circularId": 22423,
  "createdOn": 1519059253000,
  "email": "svinkin@mail.ioffe.ru",
  "subject": "IPN Triangulation of GRB 180218A (long/bright)",
  "submitter": "Dmitry Svinkin at Ioffe Institute  <svinkin@mail.ioffe.ru>",
  "eventId": "GRB 180218A"
}