NOTE: uvot_fluxes_wget.pl vrs. 2018-11-07 fem at 191020d15h05m51s809404usUT
NOTE: Source region spec. is: 340.02442 -17.32858 4"
NOTE: Used archived XRT position of 340.02442 -17.32858  4.00
NOTE: position reference is GCN_Circulars-26034
NOTE: Possible detection in wh at T+3294.4
NOTE: Possible detection in vv at T+3450.9

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

GRB 191019A: Swift/UVOT Upper Limits

S. J. LaPorte (PSU) and K. K. Simpson (PSU)
report on behalf of the Swift/UVOT team:

The Swift/UVOT began settled observations of the field of GRB 191019A
3294 s after the BAT trigger (Simpson et al., GCN Circ. 26031).
No optical afterglow consistent with the XRT position
(Evans et al. GCN Circ. 26034)
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          3294         3444          147         >19.3
white             3294         3444          147         >19.3
v                 3451         3651          197         >18.2
w1                3861         3875           14         >18.0
m2                3656         3855          197         >19.5

The magnitudes in the table are not corrected for the Galactic extinction
due to the reddening of E(B-V) = 0.04 in the direction of the burst
(Schlegel et al. 1998).


=========== Draft Detection Circular ========

GRB 191019A: Swift/UVOT Detection

S. J. LaPorte (PSU) and K. K. Simpson (PSU)
report on behalf of the Swift/UVOT team:

The Swift/UVOT began settled observations of the field of GRB 191019A
3294 s after the BAT trigger (Simpson et al., GCN Circ. 26031).
A source consistent with the XRT position
(Evans et al. GCN Circ. 26034)
is detected in the initial UVOT exposures.

Preliminary detections and 3-sigma upper limits using the UVOT photometric system
(Breeveld et al. 2011, AIP Conf. Proc. 1358, 373) for the early exposures are: 

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

white             3294         3444          147         19.93 +/- 0.24
v                 3451         3651          197         18.82 +/- 0.26
w1                3861         3875           14        >18.0
m2                3656         3855          197        >19.5

The magnitudes in the table are not corrected for the Galactic extinction
due to the reddening of E(B-V) = 0.04 in the direction of the burst
(Schlegel et al. 1998).