NOTE: uvot_fluxes_wget.pl vrs. 2018-11-07 fem at 190531d06h01m06s948516usUT
NOTE: Source region spec. is: 120.53221 35.47992 3"
NOTE: Used archived opt source position of 120.53221  35.47992  3.00
NOTE: position reference is GCN_Circ-24680
NOTE: Possible detection in uu at T+38132.4
NOTE: Possible detection in bb at T+38334.2
NOTE: Possible detection in w1 at T+37733.7
NOTE: Possible detection in vv at T+56532.4
NOTE: Possible detection in w2 at T+44275.9
WARNING: t_start for light curve (37734) and t_start from the exposure report (33852) do not agree.
  Replace ??? in draft Circular with correct value.

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

GRB 190530A: 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 190530A
***???*** s after the LAT trigger (***Author*** et al., GCN Circ. ????).
No optical afterglow consistent with the optical position
*** POSITION REFERENCE is GCN_Circ-24680 ***
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

v                56532        56734          199         >17.9
b                38334        55712          546         >18.1
u                38132        55505          686         >17.3
w1               37734        55298         1444         >17.0
w2               44276        56527         1125         >17.4

The magnitudes in the table are not corrected for the Galactic extinction
due to the reddening of E(B-V) = 0.05 in the direction of the burst
(Schlegel et al. 1998).


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

GRB 190530A: 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 190530A
***???*** s after the LAT trigger (***Author*** et al., GCN Circ. ????).
A source consistent with the optical position
*** POSITION REFERENCE is GCN_Circ-24680 ***
is detected in the initial UVOT exposures.

The preliminary UVOT position is:
    RA  (J2000) =  08:02:07.70 = 120.53209 (deg.)
    Dec (J2000) = +35:28:46.8  =  35.47968 (deg.)
with an estimated uncertainty of 0.49 arc sec. (radius, 90% confidence).

Preliminary detections 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

v                56532        56734          199         18.49 +/- 0.23
b                38334        38490          153         18.06 +/- 0.09
u                38132        38329          194         17.09 +/- 0.06
w1               37734        38128          388         16.89 +/- 0.06
w2               44276        44610          329         17.39 +/- 0.08

The magnitudes in the table are not corrected for the Galactic extinction
due to the reddening of E(B-V) = 0.05 in the direction of the burst
(Schlegel et al. 1998).