{
  "bibcode": "2007GCN..6163....1G",
  "body": "A. C. Gilmore and P. M. Kilmartin (Mt John Observatory of the University of \nCanterbury) report:\n\nWe stacked 20 x 60 second clear exposures with an Apogee U-47 CCD on a 0.6-m \nf/13.5 reflector at Mt John Observatory, centred on February 28 09:54 UT (11.5 \nhours after the burst.) Our images do not show any new object in or near the \nSwift-BAT error circle when compared with DSS-2 red and DSS-2 infra-red images.  \n\nThis message may be cited.",
  "circularId": 6163,
  "createdOn": 1172730212000,
  "email": "alan.gilmore@canterbury.ac.nz",
  "subject": "GRB 070227: optical observations",
  "submitter": "Alan Gilmore at U of Canterbury,Mt John Obs  <alan.gilmore@canterbury.ac.nz>",
  "eventId": "GRB 070227"
}