NOTE: uvot_fluxes_wget.pl vrs. 2020-11-03a fem at 201203d14h10m00s691217usUT
NOTE: Source region spec. is: 38.080 -26.538 3"
NOTE: Used archived BAT position of  38.08000 -26.53800
NOTE: position reference is GCN_Position_Notice

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

GRB 201203A: Swift/UVOT Upper Limits

S. R. Oates (U.Birmingham) and S. Dichiara (NASA/GSFC/UMCP)
report on behalf of the Swift/UVOT team:

The Swift/UVOT began settled observations of the field of GRB 201203A
124 s after the BAT trigger (Dichiara et al., GCN Circ. 28985).
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 initial exposures are:

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

white              124          192           67         >20.3

The magnitudes in the table are not corrected for the Galactic extinction
due to the reddening of E(B-V) = 0.02 in the direction of the burst
(Schlegel et al. 1998).