GCN Circular 6891
B. Sbarufatti, V. La Parola, E. Troja, V. Mangano (INAF-IASFPA), J. Kennea (PSU), F.E. Marshall (GSFC) report on behalf of the Swift-XRT team. We have analyzed the first orbit of XRT data of the Swift observation of GRB 071011 (Marshall et al., GCN 6882), started at 13:28:40 UT. We have a 1600 sec exposure in PC mode. We detect a single uncatalogued bright source within the XRT field of view, across an hot column, at position RA, Dec= 8.3887, +61.1325 deg which is RA(J2000)= 0h 33m 33.30s Dec(J2000)= +61d 07' 57.3" with an uncertainty of 4.4 arcsec (90% containment radius). This is 11 arcsec from the BAT refined position (Sakamoto et al, GCN 6889). We remark that the new BAT error circle excludes the optical afterglow candidate reported by Perley et al. (GCN 6883). A quick look to the XRT light curve gives a flat behavior at the level of 0.3 counts/sec. We wait for more data to improve our analysis.