NOTE: uvot_fluxes_wget.pl vrs. 2018-11-07 fem at 190204d11h50m27s097754usUT
NOTE: Source region spec. is: 262.2442 -36.2421 4"
NOTE: Used archived XRT position of 262.24420 -36.24210  4.00
NOTE: position reference is GCN_Notice
WARNING: t_start for light curve (759) and t_start from the exposure report (602) do not agree.
  Replace ??? in draft Circular with correct value.

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

GRB 190203: 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 190203
***???*** s after the BAT trigger (***Author*** et al., GCN Circ. ????).
No optical afterglow consistent with the XRT position
*** POSITION REFERENCE is GCN_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           858         1007          147         >20.1
white              858         6796          599         >20.8
v                 1038         7207          471         >19.2
b                  833         6592          471         >20.2
u                  808         6386          289         >19.4
w1                 784         6182          294         >19.1
m2                 759         7386          407         >20.1
w2                1013         7002          471         >19.5

The magnitudes in the table are not corrected for the Galactic extinction
due to the reddening of E(B-V) = 7.54 in the direction of the burst
(Schlegel et al. 1998).