NOTE: uvot_fluxes_wget.pl vrs. 2018-11-07 fem at 201013d15h55m18s418641usUT
NOTE: Source region spec. is: 107.39425 57.03422 4"
NOTE: Used archived XRT position of 107.39425  57.03422  4.00
NOTE: position reference is GCN_Circulars-28608
NOTE: Possible detection in uu at T+286.3
NOTE: Possible detection in wh at T+74.3
NOTE: Possible detection in bb at T+541.9
NOTE: Possible detection in w1 at T+665.9
NOTE: Possible detection in vv at T+616.1
NOTE: Possible detection in w2 at T+591.6
NOTE: Possible detection in m2 at T+641.0

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

GRB 201013A: Swift/UVOT Upper Limits

A. A. Breeveld (UCL-MSSL) and K. L. Page (U. Leicester)
report on behalf of the Swift/UVOT team:

The Swift/UVOT began settled observations of the field of GRB 201013A
74 s after the BAT trigger (Page et al., GCN Circ. 28607).
No optical afterglow consistent with the XRT position
(Beardmore et al. GCN Circ. 28608)
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            74          224          147         >16.5
u_FC               286          536          246         >16.4
white               74         1713          412         >16.5
v                  616         1764          136         >16.1
b                  542         1687          117         >16.4
u                  286         1662          343         >16.5
w1                 666         1804          127         >16.4
m2                 641         1612           58         >16.4
w2                 592         1738          136         >16.8

The magnitudes in the table are not corrected for the Galactic extinction
due to the reddening of E(B-V) = 0.05 in the direction of the burst
(Schlegel et al. 1998).


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

GRB 201013A: Swift/UVOT Detection

A. A. Breeveld (UCL-MSSL) and K. L. Page (U. Leicester)
report on behalf of the Swift/UVOT team:

The Swift/UVOT began settled observations of the field of GRB 201013A
74 s after the BAT trigger (Page et al., GCN Circ. 28607).
A source consistent with the XRT position
(Beardmore et al. GCN Circ. 28608)
is detected in the initial UVOT exposures.

Preliminary detections 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               74          224          147         16.59 +/- 0.03
v                  616          636           19         16.47 +/- 0.16
b                  542          562           20         16.56 +/- 0.09
u                  286          536          246         16.55 +/- 0.04
w1                 666          860           39         16.80 +/- 0.16
m2                 641         1612           58         16.87 +/- 0.17
w2                 592          786           39         16.90 +/- 0.19

The magnitudes in the table are not corrected for the Galactic extinction
due to the reddening of E(B-V) = 0.05 in the direction of the burst
(Schlegel et al. 1998).