{
  "bibcode": "2001GCN..1128....1K",
  "body": "Y. Komiyama, on behalf of the SuprimeCam Team:\n\nG. Kosugi, N. Kobayashi, Y. Mizumoto, M. Iye, R.Ogasawara\nT. Takata, K. Sekiguchi, T. Yamada, J. Watanabe, and T. Totani,\n             on behalf of the Subaru GRB Team:\n\nWe have obtained several R-band images with the Subaru 8.2m\ntelescope atop Mauna Kea on 2001 October 20 beginning at 10:14\n(25.5 hours after the burst), 10:19, 12:21, and 12:26 UT to\nsearch fading objects.  The observing instrument was Suprime-Cam\nand the central 34 x 50 arcmin of the HETE error box (GCN 1109)\nwas covered by two consecutive pointings with the exposure\ntime of 180 seconds each.  Due to the heavy cirrus coverage\nthe limitting magnitude was R = 22.5 (+/- 0.2 mag of photometric\nmeasurement error at the magnitude) for the first exposures and\nR = 25.0 (+/- 0.2) for the second exposures.\n\nWe find no new object down to the DSS-2 limit within our field\nand no fading object with the variability grater than 3 sigma\nthreshould of the photometric error in 2 hours.",
  "circularId": 1128,
  "createdOn": 1004813199000,
  "email": "george@subaru.naoj.org",
  "subject": "GRB011019: Subaru Optical Observations",
  "submitter": "George Kosugi at Subaru Telescope  <george@subaru.naoj.org>",
  "eventId": "GRB 011019"
}