{
  "bibcode": "2009GCN..9448....1G",
  "body": "J. Gorosabel (IAA-CSIC), A. de Ugarte Postigo (ESO, Santiago),\nF.J. Aceituno (OSN, IAA-CSIC), A.J. Castro-Tirado (IAA-CSIC), report\non behalf of a larger collaboration:\n\n\"We carried out R-band observations of the GRB 090529 XRT error circle\n(Sakamoto et al. GCN 9430; Osborne et al. GCN 9433) with the 1.5m OSN\ntelescope. On May 29.87-29.93 UT (0.27-0.33 days afer the GRB) we detected\nthe optical afterglow (Xin et al. GCN 9431) at R=21.44+/-0.06, against the\nsame reference star used by Kann et al. (GCN 9436).\"\n\nThis message can be quoted.",
  "circularId": 9448,
  "createdOn": 1243699473000,
  "email": "jgu@space.dtu.dk",
  "subject": "GRB 090529: OSN optical observations",
  "submitter": "Javier Gorosabel at Danish Space Res Inst  <jgu@space.dtu.dk>",
  "eventId": "GRB 090529"
}