{
  "bibcode": "2006GCN..4451....1Y",
  "body": "K. Yanagisawa (OAO/NAOJ), H. Toda, and N. Kawai (Tokyo Tech) report\non behalf of the Mitsume collaboration: \n\n\"We have observed the field of GRB 060108 (Oates et al. GCN 4443,\nSakamoto et al. GCN 4445) with the three-color Mitsume 50 cm\ntelescopes at Okayama, Japan starting at 15:06:34 UT (T_burst+0.46h)\nuntil 15:58:02 UT (T_burst+1.3h) for an effective exposure of 40 min\n(60sec x 40).\n\nWe did not find an object in the XRT error circle (Page et al. GCN\n4444) with the following 10-sigma upper limits that are calibrated\nagainst the SDSS data (Cool et al. GCN 4448) where conversion for Rc\nand Ic magnitudes were made using the formula by Smith et al. (2002):\n\n g': 19.4\n Rc: 18.9\n Ic: 18.2\n\nThe images obtained at Okayama can be viewed at \nhttp://bragi.oao.nao.ac.jp/support/telescope/grb50/images/GRB060108A.pdf\"",
  "circularId": 4451,
  "createdOn": 1136796905000,
  "email": "nkawai@hp.phys.titech.ac.jp",
  "subject": "GRB 060108: Mitsume optical observations",
  "submitter": "Nobuyuki Kawai at Tokyo Tech  <nkawai@hp.phys.titech.ac.jp>",
  "eventId": "GRB 060108"
}