[vsnet-grb-info 3549] GRB060801: optical upper limit in R

[GCN Circulars]

TITLE:   GCN GRB OBSERVATION REPORT
NUMBER:  5383
SUBJECT: GRB060801: optical upper limit in R
DATE:    06/08/01 21:31:40 GMT
FROM:    Gottfried Lanbach at MPE  <gok at mpe.mpg.de>

S. Duscha, G. Kanbach, M. Muehlegger, A. Stefanescu, F. Schrey,
N. Prymak, H. Steinle (MPE Garching) of the OPTIMA-Burst team report from
the 1.3m Skinakas Observatory (University of Crete, Heraklion, Greece):

We observed the position of the XRT errorcircle of GRB 060801 (trigger 
#222154, Racusin, et al., GCN Circ. 5378)
on 2006 Aug 01, 19:24 UT (mid-exposure; about 7 hours post burst):
in a 20 min R-filter exposure we do not detect a counterpart candidate 
brighter than R=22.