NOTE: uvot_fluxes_wget.pl vrs. 2018-11-07 fem at 200711d18h24m19s255869usUT
NOTE: Source region spec. is: 285.977 -0.136 3"
NOTE: Used archived BAT position of 285.97700  -0.13600
NOTE: position reference is GCN_Position_Notice

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

GRB 200711A: Swift/UVOT Upper Limits

K. K. Simpson (PSU) and F. E. Marshall (NASA/GSFC)
report on behalf of the Swift/UVOT team:

The Swift/UVOT began settled observations of the field of GRB 200711A
170 s after the BAT trigger (Marshall et al., GCN Circ. 28078).
No optical afterglow consistent with the BAT position
*** POSITION REFERENCE is GCN_Position_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

white_FC           170          319          147         >20.2
white              170          999          310         >20.6
v                  404         4651          255         >18.7
b                  503          868           58         >19.1
u                  477         5088           80         >19.0
w1                 453         5061          255         >19.3
m2                 428          448           19         >18.0
w2                 379         4446          255         >19.5

The magnitudes in the table are not corrected for the Galactic extinction
due to the reddening of E(B-V) = 0.96 in the direction of the burst
(Schlegel et al. 1998).