NOTE: uvot_fluxes_wget.pl vrs. 2018-11-07 fem at 190220d06h14m26s793426usUT
NOTE: Source region spec. is: 189.62654 76.61261 4"
NOTE: Used archived XRT position of 189.62654  76.61261  4.00
NOTE: position reference is GCN_Circulars-23907
NOTE: Possible detection in vv at T+597.6

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

GRB 190219A: Swift/UVOT Upper Limits

S.W.K. Emery (UCL-MSSL) and A. P. Beardmore (U. Leicester)
report on behalf of the Swift/UVOT team:

The Swift/UVOT began settled observations of the field of GRB 190219A
110 s after the BAT trigger (Beardmore et al., GCN Circ. 23902).
No optical afterglow consistent with the XRT position
(Beardmore et al. GCN Circ. 23907)
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           110          259          147         >20.9
u_FC               268          517          246         >20.3
white              110         7012          805         >21.6
v                  598         7423          529         >19.3
b                  523        13304          933         >20.2
u                  268        12864         1463         >20.9
w1                 647        11951         1218         >20.7
m2                 622         7570          434         >19.7
w2                 573         7218          510         >20.2

The magnitudes in the table are not corrected for the Galactic extinction
due to the reddening of E(B-V) = 0.03 in the direction of the burst
(Schlegel et al. 1998).


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

GRB 190219A: Swift/UVOT Detection

S.W.K. Emery (UCL-MSSL) and A. P. Beardmore (U. Leicester)
report on behalf of the Swift/UVOT team:

The Swift/UVOT began settled observations of the field of GRB 190219A
110 s after the BAT trigger (Beardmore et al., GCN Circ. 23902).
A source consistent with the XRT position
(Beardmore et al. GCN Circ. 23907)
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              110         7012          805        >21.6
v                  598          617           20         17.86 +/- 0.32
b                  523        13304          933        >20.2
u                  268        12864         1463        >20.9
w1                 647        11951         1218        >20.7
m2                 622         7570          434        >19.7
w2                 573         7218          510        >20.2

The magnitudes in the table are not corrected for the Galactic extinction
due to the reddening of E(B-V) = 0.03 in the direction of the burst
(Schlegel et al. 1998).