GCN Circular 7112

S. R. Oates (MSSL-UCL) and T. N. Ukwatta (GSFC/GWU) report on behalf of 
the Swift/UVOT team:

The Swift/UVOT observed the field of GRB 071117 (Ukwatta et al., GCN 7098
Not found
 
 
)
48 minutes after the BAT trigger, once the Earth had come out of observing
constraint. No new source is found in any of the UVOT observations in
either single or co-added exposures at the position of s2 reported by
Bloom et al. (GCN 7110
Not found
 
 
) or within the XRT error circle (Guidorzi et al., 
GCN 7103
Not found
 
 
).

The following 3-sigma upper limits were determined at the position
of the Gemini detection (RA=22:20:10.42, DEC=-63:26:35.5, J2000 ):

Filter  Tstart   Tend    Exp       Magnitude
          (s)     (s)     (s)      (3-sigma UL)
-------------------------------------------------
v      2960     44497   1608        >21.2
white  2852     62512   1812        >22.9
b      3779     61600   3125        >22.5
u      3574     56599   3075        >22.2
uvw1   3369     55834   4154        >22.4
uvm2   3164     32613   2368        >21.8
uvw2   4190     62783   2227        >22.1
-------------------------------------------------
The values quoted above are not corrected for the expected Galactic 
extinction corresponding to a reddening of E(B-V) =
0.024 mag in the direction of the GRB (Schlegel et al. 1998).