NOTE: uvot_fluxes_wget.pl vrs. 2018-11-07 fem at 190328d18h42m53s715746usUT
NOTE: Source region spec. is: 297.816 +39.070 3"
NOTE: Used archived BAT position of 297.81600  39.07000
NOTE: position reference is GCN_Position_Notice
WARNING: t_start for light curve (52) and t_start from the exposure report (69) do not agree.
  Replace ??? in draft Circular with correct value.

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

GRB 190327: Swift/UVOT Upper Limits

S.W.K. Emery (UCL-MSSL) and ***BA*** (***BA INSTITUTION***)
report on behalf of the Swift/UVOT team:

The Swift/UVOT began settled observations of the field of GRB 190327
***???*** s after the BAT trigger (***Author*** et al., GCN Circ. ????).
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            69          219          147         >20.2
u_FC               281          531          246         >19.3
white               69         5553          454         >20.7
v                  612         5964          432         >19.1
b                  538         6668          318         >19.8
u                  281         6579          659         >19.8
w1                 661         6374          432         >19.4
m2                 636         6169          432         >19.6
w2                  52         5759          441         >19.6

The magnitudes in the table are not corrected for the Galactic extinction
due to the reddening of E(B-V) = 0.25 in the direction of the burst
(Schlegel et al. 1998).