{
  "submittedHow": "web",
  "body": "A.S. Kozyrev, D.V. Golovin, M.L. Litvak, I.G. Mitrofanov, and A.B. Sanin\non behalf of the HEND/Mars Odyssey team,\n\nD. Svinkin, D. Frederiks, A. Lysenko, A. Ridnaia,\nand T. Cline on behalf of the Konus-Wind team,\n\nE. Burns on behalf of the IPN,\n\nC. Wang (IHEP), S. Xiong (IHEP), S. Zhang (IHEP),\nJ. Wei (NAOC),  B. Cordier (CEA) on behalf of the SVOM-GRM team,\n\nC. Wang (IHEP), S. Xiong (IHEP), S. Zhang (IHEP)\non behalf of the Insight-HXMT team,\n\nand\n\nW. Boynton, C. Fellows, K. Harshman, H. Enos, R. Starr,\nand A.S. Gardner on on behalf of the GRS-Odyssey GRB team,\nreport:\n\nThe long-duration GRB 260320A\n(NuSTAR-ACS detection: Waratkar et al., GCN 44064;\nInsight-HXMT/HE detection: Luo et al., GCN 44077;\nGlowbug detection: Cheung et al., GCN 44093;\nGRID detection: Li et al., GCN 44109)\nwas detected by NuSTAR (ACS), SVOM (GRM), Insight-HXMT(HE),\nKonus-Wind, Glowbug, GRID-11B, GRID-10B, and Mars-Odyssey (HEND)\nat about 70804 s UT (19:40:04).\n\nWe have triangulated it to a preliminary, 3 sigma error box\nwhose coordinates are:\n---------------------------------------------\n  RA(2000), deg         Dec(2000), deg\n---------------------------------------------\nCenter:\n  316.117 (21h 04m 28s) +6.388 ( +6d 23' 17\")\nCorners:\n  318.993 (21h 15m 58s) +11.535 (+11d 32' 06\")\n  313.686 (20h 54m 45s)  -0.693 (+00d 41' 36\")\n  313.683 (20h 54m 44s)  -1.165 (-01d 09' 54\")\n  318.941 (21h 15m 46s) +11.286 (+11d 17' 09\")\n---------------------------------------------\nThe error box area is 1.3 sq. deg, and its maximum\ndimension is 13.8 deg (the minimum one is 5.7 arcmin).\nThe Sun distance was 42 deg.\n\nThis localization may be improved.\n\nA triangulation map and HEALPix FITS file are posted at\nhttp://www.ioffe.ru/LEA/GRBs/GRB260320_T70801/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. ",
  "eventId": "GRB 260320A",
  "createdOn": 1774566943516,
  "circularId": 44121,
  "submitter": "Dmitry Svinkin at Ioffe Institute <svinkin@mail.ioffe.ru>",
  "format": "text/plain",
  "bibcode": "2026GCN.44121....1K",
  "subject": "IPN triangulation of GRB 260320A"
}