NOTE: uvot_fluxes_wget.pl vrs. 2020-11-03a fem at 220628d20h04m29s535981usUT
NOTE: Source region spec. is: 201.200 -32.500 3"
NOTE: Used archived BAT position of 201.20000 -32.50000
NOTE: position reference is GCN_Circ-32283

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

GRB 220627A: 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 220627A
44277 s after the LAT trigger (***Author*** et al., GCN Circ. ????).
No optical afterglow consistent with the LAT position
*** POSITION REFERENCE is GCN_Circ-32283 ***
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                45120        57747         2543         >20.5
u                44277        56908         2295         >20.7

The magnitudes in the table are not corrected for the Galactic extinction
due to the reddening of E(B-V) = 0.047 in the direction of the burst
(Schlegel et al. 1998).