{
  "submittedHow": "web",
  "bibcode": "2025GCN.38879....1S",
  "eventId": "GRB 250107C",
  "subject": "IPN triangulation of GRB 250107C",
  "submitter": "Dmitry Svinkin at Ioffe Institute <svinkin@mail.ioffe.ru>",
  "createdOn": 1736460286006,
  "format": "text/plain",
  "circularId": 38879,
  "body": "D. Svinkin, D. Frederiks, A. Lysenko, A. Ridnaia,\nand T. Cline on behalf of the Konus-Wind team,\n\nY. Zhang, C. Wang, S. Xiong, J. Wei, and B. Cordier\non behalf of the SVOM-GRM team,\n\nA. Goldstein, M. S. Briggs, C. Wilson-Hodge,\nand E. Burns on behalf of the Fermi GBM team,\n\nS. Barthelmy, J. Cummings, H. Krimm, D. Palmer, and A. Tohuvavohu\non behalf of the Swift-BAT team, report:\n\nThe long-duration GRB 250107C\n(SVOM-GRM and GECAM-B detections: Xue et al., GCN 38870)\nwas detected by Konus-Wind, SVOM (GRM), and GECAM-B\nat about 67936 s UT (18:52:16).\n\nWe have triangulated it to a preliminary, 3 sigma error box\nwhose area is 22.6 sq. deg, and its maximum\ndimension is 22.8 deg (the minimum one is 1.0 deg).\nThe Sun distance was 73 deg.\n\nThis localization may be improved.\n\nA triangulation map and HEALPix FITS file are posted at\nhttp://www.ioffe.ru/LEA/GRBs/GRB250107_T67934/IPN/\nThe HEALPix triangulation map is the multi-order HEALPix in units of\nprobability density.\n\nThe Konus-Wind time history and spectrum will be given\nin a forthcoming GCN Circular. "
}