{
  "bibcode": "2008GCN..8175....1A",
  "body": "Andreev M., Sergeev A., Karpov N. (Terskol Branch of Institute of\nAstronomy),  Khramtsova M. (The Ural State University),  Petkov V.(BNO INR\nRAS), A. Pozanenko (IKI) on behalf of larger GRB follow up collaboration\nreport:\n\nWe observed the field of GRB 080903 (Grupe et al. GCN 8169)  with Z-600 and\nCelestron 11\" telescopes of Mt. Terskol observatory.  A set of  60 s\nexposures in R filter was taken with Z-600 starting 22 minutes after burst\nonset. In a combined image we clearly detect afterglow candidate (Ugarte\nPostigo et al. GCN 8172, Korotkiy et al. GCN 8173). Preliminary photometry\nis based on USNO-A2.0 1350-06155883 star (05 47 16.36 +51 15 56.4) assuming\nR=18.1:\n\nT0+       Exp.        R_mag\n(Mid)\n\n1673 sec. 10x60 sec.  19.35 +/-0.2\n\nThe afterglow is also detected in unfiltered combined image (40x10s) taken\nwith Celestron 11\" telescope at Tmid = 1280 s. The photometry is underway.",
  "circularId": 8175,
  "createdOn": 1220445563000,
  "email": "apozanen@iki.rssi.ru",
  "subject": "GRB 080903: optical observations",
  "submitter": "Alexei Pozanenko at IKI, Moscow  <apozanen@iki.rssi.ru>",
  "eventId": "GRB 080903"
}