GCN Circular 7668
Subject
GRB 080503: MITSuME Akeno optical upper limits
Event
Date
2008-05-03T16:35:16Z (18 years ago)
From
Nobuyuki Kawai at Tokyo Tech <nkawai@hp.phys.titech.ac.jp>
Y.A. Mori, Y. Kudou, T. Shimokawabe and N. Kawai (Tokyo Tech) report on
behalf of the MITSuME collaboration:
We observed the error box of GRB 080503 (Mao et al. GCN 7665)
with the 3-color 50cm MITSuME Telescope at Akeno, Japan starting
at 2008-05-03 12:31:53 UT, 5.4 min after the trigger.
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 (UT) end (UT) Exposure LimitMag
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g' 12:31:53 12:41:03 9 x 60 s 18.8
Rc 12:31:53 12:41:03 9 x 60 s 19.2
Ic 12:31:53 12:41:03 9 x 60 s 18.1
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