{
  "bibcode": "2012GCN.13617....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  possible Swift GRB 120803A (Racusin  et al., GCN \n13565; Evans  et al., GCN 13615) with 0.45-m telescope of  ISON-NM \nobservatory  starting on  Aug. 03 (UT) 07:24:37.  We took  several \nunfiltered images of 30 s  exposures.  Within XRT error circle (Evans et \nal., GCN 13569) we do not detect any new source. A  photometry of  co-added \nframes is based on the USNO-B1.0 (R2)  nearby  stars is following:\n\nT_start,     T0+,           Exposure, UL(3 sigma),\n(UT)          mid, d         (s)\n\n07:24:37    0.00258      4x30         17.3\n07:24:37    0.01486    45x30         18.0",
  "circularId": 13617,
  "createdOn": 1344622759000,
  "email": "apozanen@iki.rssi.ru",
  "subject": "GRB 120803A: optical upper limit",
  "submitter": "Alexei Pozanenko at IKI, Moscow  <apozanen@iki.rssi.ru>",
  "eventId": "GRB 120803A"
}