NOTE: Possible detection in wh at T+153272.0

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

GRB ??????: Swift/UVOT Upper Limits

M. H. Siegel (PSU) and ***BA*** (***BA INSTITUTION***)
report on behalf of the Swift/UVOT team:

The Swift/UVOT began settled observations of the field of GRB ??????
153272 s after the IPN trigger (***BA*** et al., GCN Circ. 12357).
No optical afterglow consistent with the optical position
*** POSITION REFERENCE is GCN_Circulars-12365 ***
is detected in the initial UVOT exposures.
Preliminary 3-sigma upper limits using the UVOT photometric system
(Poole et al. 2008, MNRAS, 383, 627) for the initial exposures are:

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

white           153272       171167         6764         >20.2

The magnitudes in the table are not corrected for the Galactic extinction
due to the reddening of E(B-V) = 0.02 in the direction of the burst
(Schlegel et al. 1998).


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

GRB ??????: Swift/UVOT Detection

M. H. Siegel (PSU) and ***BA*** (***BA INSTITUTION***)
report on behalf of the Swift/UVOT team:

The Swift/UVOT began settled observations of the field of GRB ??????
153272 s after the IPN trigger (***BA*** et al., GCN Circ. 12357).
A source consistent with the optical position
*** POSITION REFERENCE is GCN_Circulars-12365 ***
is detected in the initial UVOT exposures.

The preliminary UVOT position is:
    RA  (J2000) =  02:10:09.33 =  32.53887 (deg.)
    Dec (J2000) = -27:06:19.6  = -27.10545 (deg.)
with an estimated uncertainty of 0.55 arc sec. (radius, 90% confidence).

Preliminary detections and 3-sigma upper limits using the UVOT photometric system
(Poole et al. 2008, MNRAS, 383, 627) for the early exposures are: 

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

white           153272       153343           70         20.08 +/- 0.18

The magnitudes in the table are not corrected for the Galactic extinction
due to the reddening of E(B-V) = 0.02 in the direction of the burst
(Schlegel et al. 1998).