{
  "bibcode": "2001GCN..1210....1K",
  "body": "K. Kinugasa, O. Hashimoto (Gunma Astronomical Observatory), E. Kambe\n(National Defense Academy), Y. Urata, M. Kohama, K. Torii, N. Kawai,\nA. Yoshida (RIKEN), and H. Yamaoka (Kyushu Univ.)\n \n We observed the central part of the error region of GRB011212 (GCN\n#1194) with the Gunma Astronomical Observatory's 150-cm telescope.\nStarting at 2001 December 12.547 UT, five 120-s exposures were made\n(last two were affected by a cloud) in R band at a square region\nwithin the four corners of (R.A., Dec.) = (04:59:35.5, +32:03:19),\n(04:59:43.6, +32:13:52), (05:00:33.4, +32:12:09), and (05:00:25.3,\n+32:01:36) (J2000). Five 120-s exposures were made at the same\nposition from 2001 December 13.545 UT as well as other two fields,\nwhich covered the entire HETE + RXTE/ASM joint error region except for\na small southernmost part (Decl. < +31:57:20). Combined images of each\npointing were as deep as DPOSS plate limit. Comparison with the DPOSS\nimage did not show an optical afterglow candidate brighter than 20.5R\nmag.",
  "circularId": 1210,
  "createdOn": 1008845031000,
  "email": "torii@crab.riken.go.jp",
  "subject": "GRB011212: Optical observations at Gunma",
  "submitter": "Ken ichi Torii at RIKEN  <torii@crab.riken.go.jp>",
  "eventId": "GRB 011212"
}