{
  "bibcode": "2012GCN.13679....1E",
  "body": "L. Elenin (KIAM), A. Volnova (SAI MSU), I. Molotov (KIAM), A. Pozanenko \n(IKI) report on behalf of  larger GRB  follow-up collaboration:\n\nWe observed the field of  GRB 120811C (Barlow et al., GCN  13622) with \n0.45-m telescope of ISON-NM observatory  starting on  Aug. 12 (UT) 03:25:07. \nWe took  several unfiltered images of 30 s exposures.  The optical afterglow \n(Denisenko et al., GCN 13623) is marginally detected in co-added frames at \ncoordinates (J2000) 13:18:43.98 +62:18:03.4 with uncertainty of 0.5 arcsec \nin both coordinates.  A preliminary  photometry of co-added frames is based \non the USNO-B1.0 (R2)  nearby  stars is following:\n\nT_start,     T0+,           Exposure,  OT,              UL (3 sigma)\n(UT)           mid, d         (s)\n\n03:25:07   0.5095      1800           21.5 +/-0.5   21.2",
  "circularId": 13679,
  "createdOn": 1345328322000,
  "email": "apozanen@iki.rssi.ru",
  "subject": "GRB 120811C: optical observations",
  "submitter": "Alexei Pozanenko at IKI, Moscow  <apozanen@iki.rssi.ru>",
  "eventId": "GRB 120811C"
}