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Table 1.

Ten fields of WFD survey, where observational sequence for different cadences is considered, which is used to determine fraction of systems with measured time delay as discussed in Sect. 6.

Field number 1 2 3 4 5 6 7 8 9 10
RA in deg 0.0 32.1 65.8 50.9 44.9 125.6 155.0 207.7 304.3 327.5
Dec in deg −7.4 −44.2 −7.2 −30.0 −50.9 −11.4 −25.6 −45.3 −55.2 −35.9

Notes. We investigate the observing sequence at the centers of the listed fields.

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