{
  "bibcode": "2003GCN..2106....1U",
  "body": "Y. Urata(1), T. Miyata(1), S. Nishiura(1), T. Tamagawa(1),\nT. Sekiguchi(2), S. Miyasaka(3), C. Yoshizumi(4) \n1; Kiso GRB team\n2; National Astromical Observatory of Japan \n3; Tokyo Metropolitan Government\n4; Tokushima children's science museum report;\n\n\"We have observed the optical afterglow (Peterson and Price GCN1985)\nof GRB030329 on the nights of 2003 March 29 and April 1 using the Kiso\nobservatory (the University of Tokyo) 105 cm Schmidt telescope with B\nand R band filters. Our observations started at March 29 13:21:26 (1.8\nhour after the burst). \n\nWe have measured the B and R band magnitude using field photometry\n(Henden GCN2082). The results are listed below. \n The observations and more accurate photometry are in progress.\n \n Date       start time  exp   band  mag     err\n 2003-03-29 14:23:50     60.0 R     13.324  0.010\n 2003-03-29 15:23:59     60.0 R     12.719  0.010\n 2003-03-29 16:21:56    120.0 R     13.754  0.010\n 2003-03-29 17:22:20     60.0 R     13.744  0.010\n 2003-03-29 17:42:16     60.0 R     13.644  0.010\n 2003-04-01 10:56:40    300.0 R     17.281  0.077\n 2003-04-01 10:41:15    300.0 B     17.943  0.063\n\nWe thank many high school students who participated in the education\nprogram at Kiso observatory in the night to collaborate with us.\"\n\nThis message may be cited.",
  "circularId": 2106,
  "createdOn": 1049679515000,
  "email": "urata@crab.riken.go.jp",
  "subject": "GRB030329: Kiso B and R band observations",
  "submitter": "Yuji Urata at RIKEN  <urata@crab.riken.go.jp>",
  "eventId": "GRB 030329"
}