TITLE: GCN GRB OBSERVATION REPORT NUMBER: 5294 SUBJECT: GCN 060707: Swift-UVOT observations DATE: 06/07/08 16:33:13 GMT FROM: Patricia Schady at MSSL/Swift P. Schady (UCL-MSSL), A. Moretti (INAF-OAB) report on behalf of the Swift/UVOT team: The Swift/UVOT began observing the field of GRB 060707 at 21:32:24 UT on 2006-07-07, 126 s after the BAT trigger (Moretti et al., GCN 5285). An optical counterpart is detected in coadded images in the white, V and B-band within the XRT error circle (Guidorzi et al. GCN 5293) and consistent with the position reported by de Ugarte Postigo et al. (GCN 5288). The photometry results are given for the 7 filters below: Filter T_Obs(s) Exposure(s) Magnitude/3sig_UL WHITE 128-7040 679 20.37 +/- 0.29 V 224-6016 702 19.65 +/- 0.49 B 704-6832 397 19.57 +/- 0.17 U 688-6624 251 19.32 (3 sigma UL) W1 656-6416 247 19.24 (3 sigma UL) M2 640-6224 254 19.56 (3 sigma UL) W2 736-7232 409 19.47 (3 sigma UL) The values quoted above are not corrected for the expected Galactic extinction E(B-V)=0.022