{
  "bibcode": "2010GCN.10566....1D",
  "body": "A. de Ugarte Postigo (INAF-OAB),  A.J. Castro-Tirado, J. Gorosabel,\nM. Jelinek (IAA-CSIC), P. Kubanek (IPL UV, IAA-CSIC),\nR. Cunniffe, S. Guziy (IAA-CSIC), P. Yock  (Auckland Univ.),\nW.H. Allen (Vintage  Lane Obs.), I. Bond (Massey Univ.), G. Christie\n(Stardome Obs.), report on behalf of a larger collaboration, report:\n\nWe have observed the field of the AGILE GRB 100331B\n(Del Monte et al. GCN 10560) using the 0.6m Yock-Allen robotic\ntelescope (BOOTES-3) located in Blenheim, New Zealand.\nA combined 36x60s unfiltered exposure with mean epoch 1st\nApril 2010 at 16:30 UT (19.2 hours after the burst) obtained through\ncirrus does not show any source within the Swift/XRT error circle\n(D'Elia et al. GCN 10562) down to a 3-sigma limiting magnitude\nof R~18.5 using USNO-B1.0 as photometric reference.",
  "circularId": 10566,
  "createdOn": 1270220965000,
  "email": "deugarte@iaa.es",
  "subject": "GRB 100331B: BOOTES-3 observations",
  "submitter": "Antonio Deugarte at IAA-CSIC  <deugarte@iaa.es>",
  "eventId": "GRB 100331B"
}