{
  "bibcode": "2011GCN.12688....1A",
  "body": "F. Aceituno (OSN,IAA-CSIC), A.J. Castro-Tirado, A. de Ugarte Postigo, J.C. Tello, J. Gorosabel (IAA-CSIC), report on behalf of a larger collaboration:\n\n\"We have observed the field of GRB 111215A (Oates et al., GCN 12681) with the 1.5m telescope at Observatorio de Sierra Nevada (OSN), Granada, Spain. The data were acquired in the I-band on Dec 15.7537 -- Dec. 15.8168 UT (starting ~4 hour post burst), with a total exposure time of 18x300s. A preliminary analysis reveals no object brighter than I=21.7 in the XRT error circle. The calibration was carried out using the USNO B1.0 catalogue.\"",
  "circularId": 12688,
  "createdOn": 1323983116000,
  "email": "jgu@iaa.es",
  "subject": "GRB 111215A: OSN I-band observations",
  "submitter": "Javier Gorosabel at IAA-CSIC  <jgu@iaa.es>",
  "eventId": "GRB 111215A"
}