{
  "bibcode": "2013GCN.14224....1S",
  "body": "A. Sota (OSN, IAA-CSIC) and A. J. Castro-Tirado (IAA-CSIC),\non behalf of a larger collaboration, report:\n\n\"Following the detection of GRB 130216A by Swift (Melandri et al. GCN\nCirc. 14223), we are carrying out I-band observations with the 1.5m OSN\ntelescope at Sierra Nevada Observatory starting 32 min post burst. We do\nnot find any new or varying optical source within the 3� radius Swift/BAT\nerror cirle down to I about 20. Observations are ongoing.�\n\nThis message can be quoted.",
  "circularId": 14224,
  "createdOn": 1361058999000,
  "email": "ajct@iaa.es",
  "subject": "GRB 130216A: OSN I-band observations",
  "submitter": "Alberto Castro-Tirado at Inst.de Astro. de Andalucia  <ajct@iaa.es>",
  "eventId": "GRB 130216A"
}