NOTE: uvot_fluxes_wget.pl vrs. 2018-11-07 fem at 200724d23h37m28s935560usUT
NOTE: Source region spec. is: 244.64571 60.32117 3"
NOTE: Used archived opt source position of 244.64571  60.32117  3.00
NOTE: position reference is GCN_Circulars-28159
NOTE: Possible detection in uu at T+76884.4
NOTE: Possible detection in bb at T+77797.2
NOTE: Possible detection in w1 at T+83526.1
NOTE: Possible detection in m2 at T+82619.6

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

GRB 200723A: 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 200723A
76884 s after the GBM trigger (***Author*** et al., GCN Circ. ????).
No optical afterglow consistent with the optical position
(Gompertz et al. GCN Circ. 28159)
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

b                77797        78432          617         >17.4
u                76884        89352          964         >17.4
w1               83526        89265         1304         >18.2
m2               82620        83520          886         >19.0
w2               94083        94190          106         >18.4

The magnitudes in the table are not corrected for the Galactic extinction
due to the reddening of E(B-V) = 0.018 in the direction of the burst
(Schlegel et al. 1998).


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

GRB 200723A: Swift/UVOT Detection

***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 200723A
76884 s after the GBM trigger (***Author*** et al., GCN Circ. ????).
A source consistent with the optical position
(Gompertz et al. GCN Circ. 28159)
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

b                77797        78097          295         17.49 +/- 0.04
u                76884        77184          295         17.41 +/- 0.06
w1               83526        83952          419         18.26 +/- 0.11
m2               82620        83520          886         19.42 +/- 0.17
w2               94083        94190          106        >18.4

The magnitudes in the table are not corrected for the Galactic extinction
due to the reddening of E(B-V) = 0.018 in the direction of the burst
(Schlegel et al. 1998).