NOTE: uvot_fluxes_wget.pl vrs. 2020-11-03a fem at 221215d12h37m06s640344usUT
NOTE: Source region spec. is: 54.789 -27.433 3"
NOTE: Used archived BAT position of  54.78900 -27.43300
NOTE: position reference is GCN_Position_Notice

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

GRB 221215: Swift/UVOT Upper Limits

***UBS*** (***INSTITUTION***) and ***BA*** (***BA INSTITUTION***)
report on behalf of the Swift/UVOT team:

The Swift/UVOT began settled observations of the field of GRB 221215
1291 s after the BAT trigger (***Author*** et al., GCN Circ. ????).
No optical afterglow consistent with the BAT position
*** POSITION REFERENCE is GCN_Position_Notice ***
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          1291         1430          137         >20.8
white             1291         5729          142         >20.8
v                 4700         4900          197         >19.0
b                 5520         5720          197         >20.4
u                 5315         5515          197         >20.0
w1                5110         5310          197         >19.8
m2                4905         5104          197         >19.4

The magnitudes in the table are not corrected for the Galactic extinction
due to the reddening of E(B-V) = 0.013 in the direction of the burst
(Schlegel et al. 1998).