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GCN Circular 5405

GRB 060805: optical upper limit in R
2006-08-05T21:39:23Z (18 years ago)
Alexander Stefanescu at MPE <>
M. Muehlegger, S. Duscha, A. Stefanescu, G. Kanbach, N. Primak, F. Schrey,
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 060805 (trigger
#222683, Ziaeepour, et al., GCN Circ. 5398) on 2006 Aug 05, 18:43 UT 
(mid-exposure; about 14 hours post burst): in a 30 min R-filter exposure we 
do not detect a counterpart candidate brighter than R=21.5
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