NOTE: uvot_fluxes_wget.pl vrs. 2020-11-03a fem at 201229d15h43m12s492827usUT
NOTE: Source region spec. is: 210.68921 48.19828 3"
NOTE: Used archived uvot source position of 210.68921  48.19828  3.00
NOTE: position reference is GCN_Circ_29192
NOTE: A UVOT position was reported in GCN_Circ_29192
NOTE: Possible detection in uu at T+274.8
NOTE: Possible detection in wh at T+116.7
NOTE: Possible detection in bb at T+1330.9 sum
NOTE: Possible detection in w1 at T+4870.5

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

GRB 201229A: Swift/UVOT Upper Limits

M. H. Siegel (PSU) and B. Sbarufatti (PSU)
report on behalf of the Swift/UVOT team:

The Swift/UVOT began settled observations of the field of GRB 201229A
117 s after the BAT trigger (Sbarufatti et al., GCN Circ. 29192).
No optical afterglow consistent with the XRT position
(Osborne et al. GCN Circ. 29193)
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           117          266          147         >18.1
u_FC               275          525          246         >18.0
white              117         1547          392         >18.6
v                  604         1597          117         >18.4
b                  530         1523           97         >19.1
u                  275         5085          353         >18.1
w1                 654         5070          255         >18.9

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 201229A: Swift/UVOT Detection

M. H. Siegel (PSU) and B. Sbarufatti (PSU)
report on behalf of the Swift/UVOT team:

The Swift/UVOT began settled observations of the field of GRB 201229A
117 s after the BAT trigger (Sbarufatti et al., GCN Circ. 29192).
A source consistent with the XRT position
(Osborne et al. GCN Circ. 29193)
is detected in the initial UVOT exposures.

The preliminary UVOT position is:
    RA  (J2000) =  14:02:45.40 = 210.68916 (deg.)
    Dec (J2000) = +48:11:53.3  =  48.19814 (deg.)
with an estimated uncertainty of 0.44 arc sec. (radius, 90% confidence).

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              117          266          147         18.22 +/- 0.05
v                  604         1597          117        >18.4
b                  530         1351           78         19.57 +/- 0.29
u                  275          525          246         18.19 +/- 0.08
w1                 654         5070          255         19.50 +/- 0.23

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).