NOTE: uvot_fluxes_wget.pl vrs. 2018-11-07 fem at 200730d19h29m48s516307usUT
NOTE: Source region spec. is: 184.37625 45.59475 4"
NOTE: Used archived XRT position of 184.37625  45.59475  4.00
NOTE: position reference is GCN_Circulars-28168
NOTE: Possible detection in uu at T+1804.4 sum
NOTE: Possible detection in wh at T+858.6
NOTE: Possible detection in vv at T+1556.9 sum

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

GRB 200729A: Swift/UVOT Upper Limits

S. R. Oates (U.Warwick) and P. A. Evans (U. Leicester)
report on behalf of the Swift/UVOT team:

The Swift/UVOT began settled observations of the field of GRB 200729A
145 s after the BAT trigger (Evans et al., GCN Circ. 28165).
No optical afterglow consistent with the XRT position
(Osborne et al. GCN Circ. 28168)
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           145          295          147         >19.6
u_FC               303          553          246         >19.1
white              145         1874          431         >19.8
v                  633         1749          136         >18.0
b                  559         1849          136         >19.2
u                  303         1824          343         >19.1
w1                 682         1626           78         >18.4
m2                 658         1255           39         >19.0
w2                1359         1552           39         >18.0

The magnitudes in the table are not corrected for the Galactic extinction
due to the reddening of E(B-V) = 0.01 in the direction of the burst
(Schlegel et al. 1998).


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

GRB 200729A: Swift/UVOT Detection

S. R. Oates (U.Warwick) and P. A. Evans (U. Leicester)
report on behalf of the Swift/UVOT team:

The Swift/UVOT began settled observations of the field of GRB 200729A
145 s after the BAT trigger (Evans et al., GCN Circ. 28165).
A source consistent with the XRT position
(Osborne et al. GCN Circ. 28168)
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              145         1527          392         20.28 +/- 0.20
v                  633         1577          117         18.58 +/- 0.32
b                  559         1849          136        >19.2
u                  303         1824          343         19.85 +/- 0.33
w1                 682         1626           78        >18.4
m2                 658         1255           39        >19.0
w2                1359         1552           39        >18.0

The magnitudes in the table are not corrected for the Galactic extinction
due to the reddening of E(B-V) = 0.01 in the direction of the burst
(Schlegel et al. 1998).