{
  "bibcode": "2021GCN.29348....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\nD. Svinkin, S. Golenetskii, D. Frederiks, A. Ridnaia,\nand T. Cline on behalf of the Konus-Wind 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\nand\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, bright GRB 210121A\n(Insight-HXMT/HE detection: Xue et al., GCN Circ. 29346\nGECAM detection: Peng et al., GCN Circ. 29347)\nhas been detected by Konus-Wind, Mars-Odyssey (HEND),\nINTEGRAL (SPI-ACS), Insight (HXMT/HE), and GECAM, so far,\nat about 67309 s UT (18:41:49).\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    16.981 (01h 07m 55s) -46.401 (-46d 24' 04\")\n  Corners:\n    17.388 (01h 09m 33s) -46.452 (-46d 27' 06\")\n    17.369 (01h 09m 29s) -46.539 (-46d 32' 20\")\n    16.575 (01h 06m 18s) -46.348 (-46d 20' 54\")\n    16.595 (01h 06m 23s) -46.261 (-46d 15' 40\")\n  ---------------------------------------------\nThe error box area is 181 sq. arcmin, and its maximum\ndimension is 36 arcmin (the minimum one is 5 arcmin).\nThe Sun distance was 64 deg.\n\nThis box may be improved.\n\nA triangulation map is posted at\nhttp://www.ioffe.ru/LEA/GRBs/GRB210121_T67306/IPN\n\nThe Konus-Wind time history and spectrum will be given in a forthcoming\nGCN Circular.",
  "circularId": 29348,
  "createdOn": 1611440141000,
  "email": "svinkin@mail.ioffe.ru",
  "subject": "IPN triangulation of GRB 210121A",
  "submitter": "Dmitry Svinkin at Ioffe Institute  <svinkin@mail.ioffe.ru>",
  "eventId": "GRB 210121A"
}