TITLE: GCN CIRCULAR NUMBER: 6701 SUBJECT: GRB070802: Swift/UVOT upper limits DATE: 07/08/02 19:10:36 GMT FROM: Patricia Schady at MSSL/Swift N.P.M. Kuin (MSSL) and S. Immler (GSFC)                report on behalf of the Swift-UVOT team: The Swift/UVOT observed the field of GRB070802 (trigger=286809) starting 2007-08-02 at 07:09:30, 125 s after the BAT trigger (Barthelmy et al. 2007, GCN Circ.6692). We do not find a new source in the UVOT observations at the location of the refined XRT position (Evans and Mangano, 2007, GCN Circ. 6697). The 3-sigma upper limits (in the UVOT photometric system, Breeveld et al., GCN Circ. 6614) for detecting a source inside the XRT error circle in the co-added frames (including the settling exposure and finding charts) are listed below: Filter Tstart Tstop Exposure Magnitude (s) (s) (s) (3-sigma UL) white 142 16875 589.9 >21.25 v 125 12514 773.2 >19.96 uvm2 654 4821 239.4 >19.84 uvw1 679 4969 182.3 >19.77 u 703 6307 219.6 >19.52 b 728 16681 1109.0 >21.27 uvw2 758 10893 1127.5 >21.16 The values quoted above are not corrected for the expected Galactic extinction corresponding to a reddening of E_{B-V} = 0.026 mag in the direction of the burst (Schlegel et al. 1998).