GCN Circular 7676
Subject
GRB 080503: MITSuME Ishigakijima optical upper limits
Event
Date
2008-05-04T03:04:00Z (18 years ago)
From
Nobuyuki Kawai at Tokyo Tech <nkawai@hp.phys.titech.ac.jp>
D. Kuroda, K. Yanagisawa (NAOJ) 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 105cm Telescope at Ishigakijima Astronomical Observatory
starting at 2008-05-03 13:49:55 UT, 1.4 hours after the trigger.
In the co-added images of Ic, Rc, and g' bands, we did not detect any
afterglow candidate. 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' 13:49:55 13:59:19 9 x 60 s 20.5
Rc 13:49:55 13:59:19 9 x 60 s 20.2
Ic 13:49:55 13:59:19 9 x 60 s 20.1
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