NOTE: uvot_fluxes_wget.pl vrs. 2018-11-07 fem at 200513d19h17m10s878613usUT
NOTE: Source region spec. is: 245.163 -15.746 3"
NOTE: Used archived BAT position of 245.16300 -15.74600
NOTE: position reference is GCN_Position_Notice

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

GRB 200513: Swift/UVOT Upper Limits

S. J. LaPorte (PSU) and ***BA*** (***BA INSTITUTION***)
report on behalf of the Swift/UVOT team:

The Swift/UVOT began settled observations of the field of GRB 200513
155 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           155          305          147         >20.4
white              155          305          147         >20.4

The magnitudes in the table are not corrected for the Galactic extinction
due to the reddening of E(B-V) = 0.40 in the direction of the burst
(Schlegel et al. 1998).