[vsnet-grb-info 6031] GRB 080503: MITSuME Akeno optical upper limits
GCN Circulars
gcncirc at capella.gsfc.nasa.gov
Sun May 4 01:35:27 JST 2008
TITLE: GCN CIRCULAR
NUMBER: 7668
SUBJECT: GRB 080503: MITSuME Akeno optical upper limits
DATE: 08/05/03 16:35:16 GMT
FROM: Nobuyuki Kawai at Tokyo Tech <nkawai at 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
---------------------------------------------------
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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