{
  "bibcode": "2009GCN..9728....1G",
  "body": "J. Gorosabel (IAA-CSIC, Spain), N. Huelamo (LAEFF-CAB/INTA-CSIC, Spain),\nM. Fernandez (IAA-CSIC, Spain), M. Jelinek (IAA-CSIC, Spain), P. Kubanek\n(IAA-CSIC, Spain), A. de Ugarte Postigo (OAB-INAF, Italy), A.J.\nCastro-Tirado (IAA-CSIC, Spain), R.J. Smith (JMU, Liverpool, UK), C.G.\nMundell (JMU, Liverpool, UK), on behalf of a larger collaboration, report:\n\n\"We carried out I-band observations of the GRB 090727 XRT optical\nafterglow (Smith et al. GCN Circ. 9719; GCN Circ. 9722) with the 1.23m\nCalar Alto telescope. The observations were carried out on July\n27.9646-28.0063 UT (0.45-1.45 hours post GRB) with an exposure time of\n3600s. Very preliminary photometry yields I ~ 19.4 (Vega system) for the\nafterglow, against USNO B1.0 star with I=18.72 placed at (RA_J2000,\nDEC_J2000) = (21:03:49.099, +64:55:58.23).\"",
  "circularId": 9728,
  "createdOn": 1248803819000,
  "email": "jgu@iaa.es",
  "subject": "GRB 090727: I-band observations from 1.23m CAHA",
  "submitter": "Javier Gorosabel at IAA-CSIC  <jgu@iaa.es>",
  "eventId": "GRB 090727"
}