{
  "bibcode": "2002GCN..1254....1G",
  "body": "S.Golenetskii, E.Mazets, R.Aptekar, and D.Frederiks, on behalf of the \nKonus-Wind and Coronas-F-Helicon GRB teams;\n\nT.Cline, on behalf of the Konus-Wind, Ulysses, and HETE GRB teams;\n\nK.Hurley on behalf of the Ulysses GRB team, report:\n\nA new period of activity of the soft gamma repeater SGR1900+14\n(GCN GRB report #1253) had been detected also by Konus-Wind and\nHelicon-Coronas-F GRB instruments. Several tens of separate short\nbursts have been recorded on February 17 and 18 exhibiting strong\nclustering of bursts in time. Such a behaviour strongly resembles \nactivity of this SGR on May 30, 1998 (Aptekar et al. 2001,\n ApJS, 137, 227, see figures on the pp. 240-243).\n\n    Date    \tTime at\t\tTime at\t\tTime at\n     \t    \tWind, \t\tCoronas-F,\tUlysses,\n  \t    \ts UT\t\ts UT\t\ts UT\n\n----------------------------------------------------------\n1  Feb 17\t79045\t\t79048.051\t\n2  Feb 17 \t82750\t\tbelt\n3  Feb 17 \t84062\t\t84065\n4  Fed 17 \t84156\t\t84158\n5  Feb 17\t84241\t\t84244\n6  Feb 17\t84268\t\t84271\n7  Feb 17\t84285\t\t84289.405\n8  Feb 17\t84297\t\t84300\n9  Feb 17\t84321\t\t84324\n10 Feb 17\t84330\t\t84334\n11 Feb 17\t84340\t\t84342\n12 Feb 17\t84356\t\t84360\n13 Feb 17\t84368\t\t84370\n14 Feb 17\t84372.561\t84375.72 *)\n15 Feb 17\tno data\t\t84686.934\n16 Feb 18\t04415\t\t04419.147\t03916\t\n17 Feb 18\t10645\t\tbelt\t\t10143\n18 Feb 18\t17160.622\tbelt\t\t16661\n19 Feb 18\t22435\t\tbelt\t\t21936\n20 Feb 18\t23131.513\tnot observed\t22632\n21 Feb 18\t25125\t\t25128\n22 Feb 18\t25190\t\tbelt\n\n*) Record of this event contains about 30 separate bursts.\n\nThe large part of events gathered in the Table were recorded \nin a background mode with time resolution of 3 s for Konus data,\nand of 1 s for Helicon data. It prevents us from mutual \ntriangulation. However, an analysis of differences in \narrival times onto the Wind and Coronas-F spacecraft show that\nthese values are closely distributed around 3.15 s thus\nconfirming the common origin of these events. Such differences\nbetween Wind and Ulysses data correspond to value of ~ 500s \nvalid for SGR1900+14.",
  "circularId": 1254,
  "createdOn": 1014242138000,
  "email": "aptekar@pop.ioffe.rssi.ru",
  "subject": "SGR1900+14 activity",
  "submitter": "Rafail Aptekar at Ioffe Physico Technical Inst  <aptekar@pop.ioffe.rssi.ru>"
}