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Table 4

Predicted astrometry from 2024 to 2026 for the vetted binary calibrators.

Target 2024-01-01 2025-01-01 2026-01-01



ΔRA ΔDec Error(1) ΔRA ΔDec Error(1) ΔRA ΔDec Error(1)
(mas) (mas) (mas) (mas) (mas) (mas) (mas) (mas) (mas)
WDSJ00209+1059 682.7 −405.9 0.9 682.5 −409.7 1.1 682.3 −413.3 1.5
WDSJ00427−3828 −297.5 −615.1 1.2 −300.6 −610.4 1.8 −303.6 −605.7 2.4
WDSJ04021−3429 718.7 802.8 0.3 691.7 814.5 0.4 664.3 825.5 0.7
WDSJ05055+1948 −865.2 378.2 0.5 −867.0 374.4 0.7 −868.7 370.5 0.9
WDSJ05270−6837 553.5 −1353.8 0.7 558.1 −1354.8 1.0 562.7 −1355.8 1.4
WDSJ06345−1114 131.5 708.8 1.7 138.8 714.7 2.5 146.1 720.5 3.3
WDSJ06364+2717 −694.0 −4.3 2.9 −683.8 −18.7 4.0 −671.4 −33.0 5.4
WDSJ08394−3636 −833.0 −468.6 2.2 −834.4 −473.9 3.3 −834.5 −478.4 4.4
WDSJ10269+1713 419.6 −722.2 0.6 419.7 −725.5 0.8 419.7 −728.6 1.1
WDSJ10361−2641 −1114.0 681.3 0.4 −1115.2 671.2 0.6 −1116.1 660.9 0.7
WDSJ14077−4952 −385.8 884.8 0.3 −362.3 878.6 0.5 −338.7 871.9 0.7
WDSJ18516−1719 −314.5 1486.4 0.3 −314.4 1486.4 0.4 −314.2 1486.4 0.5
WDSJ20399+1115 231.4 423.7 2.9 195.2 418.7 5.3 158.2 411.8 8.7

Notes. (1)The astrometric predictions are calculated form the posteriors of the orbit fits, and the RA and Dec can be highly correlated. Consequently, the error reported in the tables represents the long-axis of the error ellipse.

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