{
  "bibcode": "2007GCN..6335....1S",
  "body": "Jan Strobl  (ASU  Ondrejov),  Martin Jelinek  (IAA\nCSIC  Granada),  Martin Nekola,  Filip Munz,  Rene\nHudec (ASU) and Petr Kubanek (IAA, U. Valencia)\n\nreport\n\nThe  robotic telescope  BART in  Ondrejov followed\nautomatically the  GRB 070411  (Moretti et al. GCN\n6267), with  the first exposure starting 55.7s af-\nter  the GRB  trigger (15.9s  after receiving  the\nmessage).\n\nThe beginning of the (unfiltered) optical observa-\ntion is simultaneous to  the second gamma-ray peak\nof this ~100s long GRB (Markwardt et al. GCN6274).\n\nThe  optical transient  (Moretti et al.  GCN 6267,\nKann et al. GCN6268)  was not detected, giving the\nfollowing limits:\n\nstart   end     limit\tnote\n-----------------------------\n55.7s   85.7s   R>15.4  30s, simultaneous to gamma\n55.7s  167.9s   R>16.0  3x30s\n\nThis message may be cited",
  "circularId": 6335,
  "createdOn": 1177083056000,
  "email": "mates@iaa.es",
  "subject": "GRB 070411: BART early limit",
  "submitter": "Martin Jelinek at Inst.Astrophys.Andalucia,Granada  <mates@iaa.es>",
  "eventId": "GRB 070411"
}