NOTE: uvot_fluxes_wget.pl vrs. 2024-08-27 fem at 260923d01h30m39s296712usUT
NOTE: Source region spec. is: 227.90846 14.21908 4"
NOTE: Used archived XRT position of 227.90846  14.21908  4.00
NOTE: position reference is GCN_Circualrs-45696
WARNING: t_start for light curve (118) and t_start from the exposure report (157) do not agree.
  Replace ??? in draft Circular with correct value.

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

GRB 260922A: Swift/UVOT Upper Limits

***UBS*** (***INSTITUTION***) 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 260922A
***???*** s after the BAT trigger (Page et al., GCN Circ. 45690).
No optical afterglow consistent with the XRT position
*** POSITION REFERENCE is GCN_Circualrs-45696 ***
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           118          268          147         >20.2
u_FC               331          581          246         >20.1
white              118         4697          530         >20.6
v                  661         1062           58         >18.2
b                  587         1161           58         >19.1
u                  331         1135          285         >20.3
w1                1091         1111           19         >17.9

The magnitudes in the table are not corrected for the Galactic extinction
due to the reddening of E(B-V) = 0.035 in the direction of the burst
(Schlegel et al. 1998).