NOTE: uvot_fluxes_wget.pl vrs. 2018-11-07 fem at 200709d15h23m51s280817usUT
NOTE: Source region spec. is: 252.377 +15.204 3"
NOTE: Used archived BAT position of 252.37700  15.20400
NOTE: position reference is GCN_FOM_Notice

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

GRB 200709B: 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 200709B
4669 s after the HAWC trigger (***Author*** et al., GCN Circ. ????).
No optical afterglow consistent with the HAWC position
*** POSITION REFERENCE is GCN_FOM_Notice ***
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 first
finding chart (FC) exposure and subsequent exposures are:

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

u_FC              4669         4919          246         >20.0
b                 4924         4935           11         >18.5
u                 4669        12641          478         >20.3

The magnitudes in the table are not corrected for the Galactic extinction
due to the reddening of E(B-V) = 0.067 in the direction of the burst
(Schlegel et al. 1998).