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GCN Circular 2106

GRB030329: Kiso B and R band observations
2003-04-07T01:38:35Z (21 years ago)
Yuji Urata at RIKEN <>
Y. Urata(1), T. Miyata(1), S. Nishiura(1), T. Tamagawa(1),
T. Sekiguchi(2), S. Miyasaka(3), C. Yoshizumi(4) 
1; Kiso GRB team
2; National Astromical Observatory of Japan 
3; Tokyo Metropolitan Government
4; Tokushima children's science museum report;

"We have observed the optical afterglow (Peterson and Price GCN1985)
of GRB030329 on the nights of 2003 March 29 and April 1 using the Kiso
observatory (the University of Tokyo) 105 cm Schmidt telescope with B
and R band filters. Our observations started at March 29 13:21:26 (1.8
hour after the burst). 

We have measured the B and R band magnitude using field photometry
(Henden GCN2082). The results are listed below. 
 The observations and more accurate photometry are in progress.
 Date       start time  exp   band  mag     err
 2003-03-29 14:23:50     60.0 R     13.324  0.010
 2003-03-29 15:23:59     60.0 R     12.719  0.010
 2003-03-29 16:21:56    120.0 R     13.754  0.010
 2003-03-29 17:22:20     60.0 R     13.744  0.010
 2003-03-29 17:42:16     60.0 R     13.644  0.010
 2003-04-01 10:56:40    300.0 R     17.281  0.077
 2003-04-01 10:41:15    300.0 B     17.943  0.063

We thank many high school students who participated in the education
program at Kiso observatory in the night to collaborate with us."

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