{
  "bibcode": "2006GCN..5184....1R",
  "body": "V.Rumyantsev (CrAO),  R. Karimov (MAO),  R. Salyamov (MAO),  E. Pavlenko\n(CrAO), Yu. Efimov (CrAO), A. Pozanenko (IKI),  M. Ibrahimov (MAO) on behalf\nof larger GRB follow up collaboration report:\n\nWe observed the location of Swift short GRB060502B (Troja et al., GCNs 5055,\n5059, 5063, 5093) in the R band with 1.5m telescope of Maidanak Astronomical\nObservatory (MAO)  starting on May 02 22:43 (UT) (5.3 hours after the\ntrigger) and Shajn 2.6m telescope of CrAO between  May 03 (UT) 01:27 - 02:41\n(8.6 hours after the trigger). Totally we obtained 6 images of 180 sec\nexposure with mean seeing ~0.95\" in Maidanak 1.5m and 39 images of 60 sec\nexposure in CrAO observatory (seeing ~3\").  In  combined images we detect G1\ngalaxy mentioned by Berger et al. (GCN 5071) and  Halpern et al. (GCN 5072)\nand do not detect S2 source (Price et al. GCN 5077). A photometry of G1 and\nS1 sources is based on  USNO B1.0 star R=17.5 mag (USNO-B1 426-035230 RA,\nDec = 278.92572,52.61611):\n\nMid time    Telescope   Exp.   G1           S1           Limiting   (UT)\n                        sec    mag          mag          mag\n\nMay 02.954  MAO 1.5m   6�180  ~24.2        21.40 +/-0.10   23.6\nMay 03.086  CrAO 2.6m  39x60  23.7 +/-0.3  21.65 +/-0.05   24.1\n\nOur brightness estimation of G1 is consistent with brightness estimations\nobtained in  MDM 1.3 (T0+15 h) R~23.9  (Halpern et al. GCN5072) and in\nGemini North (T0+17 h) R~23.8 (Price et al. GCN5077).\n\nThe combined images can be found in http://grb.rssi.ru/GRB060502b\nThis message may be cited.",
  "circularId": 5184,
  "createdOn": 1148896957000,
  "email": "apozanen@iki.rssi.ru",
  "subject": "GRB060502b: optical observations",
  "submitter": "Alexei Pozanenko at IKI, Moscow  <apozanen@iki.rssi.ru>",
  "eventId": "GRB 060502B"
}