NOTE: Possible detection in uu at T+69799.4
NOTE: Possible detection in bb at T+70632.3
NOTE: Possible detection in vv at T+68965.4

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

GRB 140508A: Swift/UVOT Upper Limits

***UBS*** (***INSTITUTION***) and ***BA*** (***BA INSTITUTION***)
report on behalf of the Swift/UVOT team:

The Swift/UVOT began settled observations of the field of GRB 140508A
68965 s after the GBM trigger (***Author*** et al., GCN Circ. ????).
No optical afterglow consistent with the optical position
(Singer et al. GCN Circ. 16226)
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

v                68965        75171         1292         >19.3
b                70632        71427          782         >19.4
u                69799        70626          814         >18.7

The magnitudes in the table are not corrected for the Galactic extinction
due to the reddening of E(B-V) = 0.031 in the direction of the burst
(Schlegel et al. 1998).


=========== Draft Detection Circular ========

GRB 140508A: Swift/UVOT Detection

***UBS*** (***INSTITUTION***) and ***BA*** (***BA INSTITUTION***)
report on behalf of the Swift/UVOT team:

The Swift/UVOT began settled observations of the field of GRB 140508A
68965 s after the GBM trigger (***Author*** et al., GCN Circ. ????).
A source consistent with the optical position
(Singer et al. GCN Circ. 16226)
is detected in the initial UVOT exposures.

The preliminary UVOT position is:
    RA  (J2000) =  17:01:51.95 = 255.46647 (deg.)
    Dec (J2000) = +46:46:49.5  =  46.78043 (deg.)
with an estimated uncertainty of 0.46 arc sec. (radius, 90% confidence).

Preliminary detections using the UVOT photometric system
(Breeveld et al. 2011, AIP Conf. Proc. 1358, 373) for the early exposures are: 

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

v                68965        69792          814         19.38 +/- 0.10
b                70632        71427          782         19.59 +/- 0.06
u                69799        70626          814         18.81 +/- 0.05

The magnitudes in the table are not corrected for the Galactic extinction
due to the reddening of E(B-V) = 0.031 in the direction of the burst
(Schlegel et al. 1998).