{
  "bibcode": "2007GCN..6456....1M",
  "body": "T. Minezaki (IoA, Tokyo) and P.A. Price (IfA, Hawaii) report on behalf\nof a larger collaboration:\n\nWe observed the localisation of GRB070521 with the MAGNUM telescope +\nMIPS dual-beam imager.  While our observations consist of both optical\nand NIR images, we report here only the NIR imaging.  We do not find any\nafterglow within the XRT error circle (GCN ##6431,6452) to the following\nlimits (based on flux calibration with a nearby 2MASS star):\n\nFilter\t\tt - t_GRB (min)\t\tLimit (mag)\nJ\t\t49.2\t\t\t20.7\nH\t\t106.6\t\t\t20.3\nK\t\t87.1\t\t\t19.2\n\nThis message may be cited.",
  "circularId": 6456,
  "createdOn": 1179865519000,
  "email": "price@ifa.hawaii.edu",
  "subject": "GRB070521: NIR observations",
  "submitter": "Paul Price at IfA,UH  <price@ifa.hawaii.edu>",
  "eventId": "GRB 070521"
}