NOTE: uvot_fluxes_wget.pl vrs. 2018-11-07 fem at 200726d13h04m42s916798usUT
NOTE: Source region spec. is: 248.53767 -51.83556 4"
NOTE: Used archived XRT position of 248.53767 -51.83556  4.00
NOTE: position reference is GCN_Circulars-28115

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

GRB 200715A: 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 200715A
7584 s after the INTEGRAL trigger (***Author*** et al., GCN Circ. ????).
No optical afterglow consistent with the XRT position
(D'Ai et al. GCN Circ. 28115)
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             8335         8765          423         >20.7
v                 9086         9092            6         >16.8
u                 7584         8328          732         >20.2

The magnitudes in the table are not corrected for the Galactic extinction
due to the reddening of E(B-V) = 1.10 in the direction of the burst
(Schlegel et al. 1998).