NOTE: uvot_fluxes_wget.pl vrs. 2018-01-16 fem at 180315d03h41m14s792422usUT
NOTE: Source region spec. is: 275.0898 +7.1831 4"
NOTE: Used archived XRT position of 275.08980   7.18310  4.00
NOTE: position reference is GCN_Notice
NOTE: Possible detection in uu at T+308.6
NOTE: Possible detection in wh at T+150.9
NOTE: Possible detection in bb at T+737.2 sum
NOTE: Possible detection in w1 at T+688.3
NOTE: Possible detection in w2 at T+614.4
NOTE: Possible detection in m2 at T+835.5 sum

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

GRB 180314: Swift/UVOT Upper Limits

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

The Swift/UVOT began settled observations of the field of GRB 180314
151 s after the BAT trigger (***Author*** et al., GCN Circ. ????).
No optical afterglow consistent with the XRT position
*** POSITION REFERENCE is GCN_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           151          301          147         >19.8
u_FC               309          558          246         >18.0
white              151         2228          470         >21.0
v                  639         2270          187         >18.1
b                  564         6247          294         >18.8
u                  309         6121          598         >18.1
w1                 688         5917          352         >17.3
m2                 664         5711          333         >17.1
w2                 614         2254          156         >17.0

The magnitudes in the table are not corrected for the Galactic extinction
due to the reddening of E(B-V) = 0.23 in the direction of the burst
(Schlegel et al. 1998).


=========== Draft Detection Circular ========

GRB 180314: Swift/UVOT Detection

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

The Swift/UVOT began settled observations of the field of GRB 180314
151 s after the BAT trigger (***Author*** et al., GCN Circ. ????).
A source consistent with the XRT position
*** POSITION REFERENCE is GCN_Notice ***
is detected in the initial UVOT exposures.

Preliminary detections and 3-sigma upper limits using the UVOT photometric system
(Breeveld et al. 2011, AIP Conf. Proc. 1358, 373) for the early exposures are: 

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

white              151         1012          334         20.65 +/- 0.25
v                  639         2270          187        >18.1
b                 6127         6247          119         18.80 +/- 0.16
u                  309          558          246         18.36 +/- 0.12
w1                 688         1457           78         17.39 +/- 0.17
m2                 664         1432           97         17.37 +/- 0.19
w2                 614         1037           58         17.17 +/- 0.18

The magnitudes in the table are not corrected for the Galactic extinction
due to the reddening of E(B-V) = 0.23 in the direction of the burst
(Schlegel et al. 1998).