NOTE: uvot_fluxes_wget.pl vrs. 2020-11-03a fem at 220526d14h56m07s038201usUT
NOTE: Source region spec. is: 244.883 -15.826 3"
NOTE: Used archived BAT position of 244.88300 -15.82600
NOTE: position reference is GCN_Position_Notice
WARNING: Did not find t_start in exposure report.

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

GRB 220526: Swift/UVOT Upper Limits

N. J. Klingler (GSFC/UMBC/CRESTII) and ***BA*** (***BA INSTITUTION***)
report on behalf of the Swift/UVOT team:

The Swift/UVOT began settled observations of the field of GRB 220526
481 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 initial exposures are:

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

white              481          487            7         >18.6

The magnitudes in the table are not corrected for the Galactic extinction
due to the reddening of E(B-V) = 0.303 in the direction of the burst
(Schlegel et al. 1998).