NOTE: uvot_fluxes_wget.pl vrs. 2018-01-16 fem at 180212d17h37m18s213779usUT
NOTE: Source region spec. is: 1.84175 18.55275 4"
NOTE: Used archived XRT position of   1.84175  18.55275  4.00
NOTE: position reference is GCN_Circulars-22413

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

GRB 180210A: 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 180210A
111478 s after the LAT trigger (***Author*** et al., GCN Circ. ????).
No optical afterglow consistent with the XRT position
(Beardmore et al. GCN Circ. 22413)
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           111978       123418         1200         >21.3
v               112480       118382         1016         >20.2
u               111478       123046         1988         >20.4

The magnitudes in the table are not corrected for the Galactic extinction
due to the reddening of E(B-V) = 0.04 in the direction of the burst
(Schlegel et al. 1998).