Skip to main content
New Swift-BAT/GUANO and IceCube Notice Types Available! See news and announcements

GCN Circular 2005

GRB030329: Optical observations
2003-03-29T23:08:58Z (21 years ago)
Vasilij Rumjantsev at CrAO <>
V.Rumyantsev, E.Pavlenko, Y.Efimov, K.Antoniuk, O.Antoniuk, N.Primak (CrAO)
and A.Pozanenko
(IKI) report:

We have observed the  GRB030329 (HETE #2652) and OT  of the GRB found  by
B.A. Peterson and P.A. Price (GCN 1985) with Cassegrain 38-cm telescope of
Several 180 sec. exposures of  R (Johnson) filter were obtained.
The photometry of the OT in  respect to the star of USNO �2.0 - 1050-6351075
(the star A in the figure in is following:

Star A (USNO �2.0 - 1050-6351075)
RA =10 44 54.49
DEC=+21 34 29.8
R=14.00  B=14.90

JD Hel = 52728.2293  delR=0.17
                         .2318  delR=0.26
                         .2349   delR=0.23
                         .2397   delR=0.27

The figure of the OT can be found in

Preliminary results of photometry with  AZT-11 telescope of CrAO are

start  (JD)  52728.26714
end   (JD)  52728.31593
Date  JD             U          B          V          R        I
52728.2932     14.25   14.95   14.49   14.02   13.65
52728.2932     0.018   0.019   0.030   0.017   0.027 error

CrAO telescopes will continue to monitor the OT.

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