{
  "bibcode": "2009GCN..9727....1N",
  "body": "Sub:GRB 090728, RIMOTS optical upper limits  \n\nK.Noda, H.Hayasi, E.Sonoda, N.Ohmori, K.Kono  \nA.Daikyuji, Y.Nisioka, M.Yamauchi\n(University of Miyazaki)\n\n We have observed the field covering the error circle of\nGRB 090728 (Swift trigger 358574, GCN 9725, V. Mangano et al.) \nwith the unfiltered CCD camera on the 30-cm telescope \nat University of Miyazaki.\nThe observation was started 14:46:53 UT, about 23 sec\nafter the Swift trigger time. \nWe have compared our data of 30 sec exposures\nwith the USNO-A2.0 catalog,\nThere is no new source at the reported position. \n(Swift trigger 358574, GCN 9725, V. Mangano et al.) \n\nthe upper limits are as follows:\n--------------------------------------------------------------\nStart(UT)   End(UT)    Num. of frames    Limit (mag.)\n--------------------------------------------------------------\n14:59:59\t15:00:29          1            13.8\n14:46:53\t15:00:29         11            15.4\n---------------------------------------------------------------",
  "circularId": 9727,
  "createdOn": 1248802366000,
  "email": "hayasi@astro.miyazaki-u.ac.jp",
  "subject": "GRB 090728, RIMOTS optical upper limits",
  "submitter": "Hidenori Hayasi at Miyazaki U  <hayasi@astro.miyazaki-u.ac.jp>",
  "eventId": "GRB 090728"
}