NOTE: uvot_fluxes_wget.pl vrs. 2018-11-07 fem at 200626d14h39m54s410969usUT
NOTE: Source region spec. is: 172.800 -14.800 3"
NOTE: Used archived BAT position of 172.80000 -14.80000
NOTE: position reference is GCN_Circ-28028

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

GRB 200625A: 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 200625A
53803 s after the LAT trigger (***Author*** et al., GCN Circ. ????).
No optical afterglow consistent with the LAT position
*** POSITION REFERENCE is GCN_Circ-28028 ***
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            54609        66403         1857         >21.7
v                55415        61187          676         >19.5
u                53803        66088         2333         >20.6

The magnitudes in the table are not corrected for the Galactic extinction
due to the reddening of E(B-V) = 0.04 in the direction of the burst
(Schlegel et al. 1998).