GCN Circular 7400
G. Kornienko, A. Erofeeva (UAFO), A. Pozanenko (IKI) on behalf of larger GRB follow up collaboration report: We observed the error box of GRB080307 (Holland et al. GCN 7362) on March 05 with SR-22 telescope of UAFO observatory. A set of 20 unfiltered images of 60 s exposure was obtained starting (UT) 11:36:55, i.e. 13.5 minutes after burst onset. No new object is detected within enhanced XRT error circle (Goad et al. GCN 7366). Based on USNO-A2.0 (R) we estimated upper limit as following T0+ Exposure UL (mid) 23.5 m 10x60 s 18.8 The message may be cited.