GCN Circular 7522
Subject
GRB 080325: MITSuME Akeno optical upper limits
Date
2008-03-26T07:40:25Z (16 years ago)
From
Nobuyuki Kawai at Tokyo Tech <nkawai@hp.phys.titech.ac.jp>
Y. Kudou, T. Shimokawabe and N. Kawai (Tokyo Tech) report on behalf of
the MITSuME collaboration:
We observed the error box of GRB 080325 (L. Vetere et al. GCN 7512)
with the 3-color 50cm MITSuME Telescope at Akeno, Japan starting
at 16:51:16 Mar 25 UT, 12.7 hr after the trigger under a poor sky
condition at a low altitude.
In the co-added images of Ic, Rc, and g' bands, we did not detect
any afterglow candidate in the XRT error circle.
The 3-sigma limiting magnitudes based on USNO-B1.0 (I-band) and NOMAD
(R-band,g'-band) stars are following.
Filter start time end time Exposure Mag (3-sigma upper limit)
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g' 16:51:16 17:54:41 15 x 60 s 17.2
Rc 16:51:16 17:54:41 15 x 60 s 16.4
Ic 16:51:16 17:54:41 15 x 60 s 17.0
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