=========== Draft Upper Limit Circular ========

GRB 131122: Swift/UVOT Upper Limits

L. M. Z. Hagen (PSU) and A. Maselli (***BA INSTITUTION***)
report on behalf of the Swift/UVOT team:

The Swift/UVOT began settled observations of the field of GRB 131122
13667 s after the INTEGRAL trigger (***Author*** et al., GCN Circ. ????).
No optical afterglow consistent with the XRT position
(Maselli and D'Elia GCN Circ. 15513)
is detected in the initial UVOT exposures.
Preliminary 3-sigma upper limits using the UVOT photometric system
(Breeveld et al. 2011, AIP Conf. Proc. 1358, 373) for the initial exposures are:

Filter         T_start(s)   T_stop(s)      Exp(s)         Mag

white            14390        20666          855         >21.8
v                20918        21149          227         >19.4
u                13667        20224         1375         >21.0

The magnitudes in the table are not corrected for the Galactic extinction
due to the reddening of E(B-V) = 0.01 in the direction of the burst
(Schlegel et al. 1998).