NOTE: uvot_fluxes_wget.pl vrs. 2020-11-03a fem at 201217d06h51m34s652624usUT
NOTE: Source region spec. is: 201.4872 36.3116 3"
NOTE: Used archived BAT position of 201.48720  36.31160
NOTE: position reference is GCN_Circ-29059
WARNING: Did not recognize UBS name.

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

GRB 201216A: Swift/UVOT Upper Limits

Beardmore (***INSTITUTION***) and S. R. Oates (***BA INSTITUTION***)
report on behalf of the Swift/UVOT team:

The Swift/UVOT began settled observations of the field of GRB 201216A
21682 s after the GBM-BAT trigger (***Author*** et al., GCN Circ. ????).
No optical afterglow consistent with the GBM-BAT position
*** POSITION REFERENCE is GCN_Circ-29059 ***
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 initial exposures are:

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

white            22293        34157         1944         >21.9
v                22905        28617          758         >19.6
u                21682        33554         2051         >21.1

The magnitudes in the table are not corrected for the Galactic extinction
due to the reddening of E(B-V) = 0.012 in the direction of the burst
(Schlegel et al. 1998).