Skip to main content
Testing. You are viewing the public testing version of GCN. For the production version, go to https://gcn.nasa.gov.
New Announcement Feature, Code of Conduct, Circular Revisions. See news and announcements

GCN Circular 2106

Subject
GRB030329: Kiso B and R band observations
Date
2003-04-07T01:38:35Z (21 years ago)
From
Yuji Urata at RIKEN <urata@crab.riken.go.jp>
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."

This message may be cited.
Looking for U.S. government information and services? Visit USA.gov