TITLE:   GCN CIRCULAR
NUMBER:  6900
SUBJECT: GRB 071011: NAYUTA Optical Observation,  correction to GCN6886 
DATE:    07/10/12 12:30:17 GMT
FROM:    Ryo Iizuka at NHAO  <iizuka@nhao.go.jp>

R. Iizuka and S. Maeno report on behalf of NHAO.

We observed the field of GRB 071011 (GCN 6882) with MINT
on the 2.0-m NAYUTA telescope at Nishi-Harima Astronomical
Observatory, Japan. We took images in R-band on 2007 Oct 11 13:36 UT  
(56 minutes after the burst).

We detect a source at the position reported by Cenko et al.
(GCN 6895). We estimate a preliminary magnitude relative to
the USNO B1.0 catalog. The source fades over our observations,
as was reported by Perley et al. (GCN 6898).

start(UT) exp(sec) R-mag err
--------------------------------------------
13:36:23    300    20.3    0.2
14:37:37    300    21.0    0.2
--------------------------------------------