{
  "bibcode": "2021GCN.30993....1K",
  "body": "A.S. Kozyrev, D.V. Golovin, M.L. Litvak, I.G. Mitrofanov, and A.B. Sanin\non behalf of the MGNS/BepiColombo and HEND/Mars Odyssey teams,\n\nJ. Benkhoff on behalf of the BepiColombo team,\n\nK. Hurley on behalf of the IPN,\n\nD. Svinkin, S. Golenetskii, D. Frederiks, A. Ridnaia,\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\nand\n\nW. Boynton, C. Fellows, K. Harshman, H. Enos, and R. Starr,\non behalf of the GRS-Odyssey GRB team, report:\n\nThe bright, long-duration GRB 211019A\n(Fermi-GBM detection: The Fermi GBM team, GCN Circ. 30941;\nBALROG localization: F. Kunzweiler et al., GCN Circ. 30942;\nGRBAlpha detection: J. Ripa et al., GCN Circ. 30946)\nwas detected by BepiColombo (MGNS; see introductory GCN Circ. 30949),\nMars-Odyssey (HEND), GRBAlpha, Fermi (GBM trigger 656315976),\nKonus-Wind, and INTEGRAL (SPI-ACS), at about 21571 s UT (05:59:31).\n\nThe burst light curves in the energy range 30 keV-1.5 MeV (HEND) and\n250-450 keV (MGNS) exhibit a bright peak with a total duration of ~17 s.\n\nWe have triangulated GRB 211019A to the following 3 sigma annuli:\n---------------------------------------------------------\n           R.A.(J2000)  Dec.(J2000)    R      +dR     -dR\n               deg         deg        deg     deg     deg\n---------------------------------------------------------\nMGNS-HEND    27.190     10.927     89.034  +0.021  -0.022\nKonus-HEND  200.705     -8.093     87.815  +0.017  -0.017\nKonus-GBM   190.965     -7.594     80.456  +0.431  -0.431\n---------------------------------------------------------\nThe MGNS-HEND and Konus-HEND annuli intersect to form two error\nboxes one of which is inconsistent with the Konus-GBM annulus,\nthe KW ecliptic latitude response,\nand the Fermi (GBM) RoboBA and BALROG localizations.\n\nThe correct preliminary, 3 sigma error box is:\n  ---------------------------------------------\n   RA(2000), deg                 Dec(2000), deg\n  ---------------------------------------------\n  Center:\n   106.988 (07h 07m 57s) -38.779 (-38d 46' 43\")\n  Corners:\n   106.975 (07h 07m 54s) -38.728 (-38d 43' 41\")\n   106.898 (07h 07m 36s) -39.122 (-39d 07' 19\")\n   107.002 (07h 08m 01s) -38.819 (-38d 49' 07\")\n   107.079 (07h 08m 19s) -38.424 (-38d 25' 25\")\n  ---------------------------------------------\nThe error box area is 49 sq. arcmin, and its maximum\ndimension is 43 arcmin (the minimum one is 2.0 arcmin).\nThe Sun distance was 89 deg.\n\nThis box may be improved.\n\nA triangulation maps are posted at:\nhttp://www.ioffe.ru/LEA/GRBs/GRB211019_T21573/IPN/\nand\nhttp://l503.iki.rssi.ru/owncloud/index.php/s/bRzLdux7RLz1tVf",
  "circularId": 30993,
  "createdOn": 1635174176000,
  "email": "svinkin@mail.ioffe.ru",
  "subject": "IPN Triangulation of GRB 211019A",
  "submitter": "Dmitry Svinkin at Ioffe Institute  <svinkin@mail.ioffe.ru>",
  "eventId": "GRB 211019A"
}