Open Access

Table B.1

Astrometric measurements on the vetted binary calibrators.

Target Epoch ΔRA ΔDEC σΔRA σΔDEC ρ Source
Date MJD [mas] [mas] [mas] [mas]
WDSJ00209+1059 2021-10-23 59510.04 683.09 −397.77 0.18 0.12 −0.98 ATs

WDSJ00427-3828 2021-10-21 59508.11 −290.45 −624.81 0.05 0.17 −1.00 ATs
2021-10-22 59509.10 −290.79 −624.68 0.09 0.12 1.00 ATs
2021-11-16 59534.20 −290.47 −624.79 0.01 0.09 −1.00 ATs

WDSJ04021-3429 2019-10-21 58777.34 826.20 747.81 0.05 0.09 0.84 ATs
2019-10-22 58778.36 825.16 748.89 0.09 0.08 0.84 ATs
2019-11-11 58798.18 824.75 748.84 0.50 0.50 0.00 UTs
2020-02-10 58890.03 818.64 752.26 0.50 0.50 0.00 UTs
2021-08-26 59453.34 779.74 773.31 0.50 0.50 0.00 UTs
2021-08-27 59454.31 779.51 773.28 0.50 0.50 0.00 UTs
2022-08-19 59810.34 754.16 786.14 0.50 0.50 0.00 UTs
2022-09-15 59837.30 752.14 787.16 0.50 0.50 0.00 UTs
2023-08-31 60188.39 726.79 799.19 0.50 0.50 0.00 UTs
2023-09-26 60212.31 728.37 798.47 0.50 0.50 0.00 UTs
2023-11-02 60251.26 722.11 801.35 0.50 0.50 0.00 UTs

WDSJ05055+1948 2021-11-03 59521.18 −861.44 386.17 0.17 0.09 1.00 ATs
2021-11-27 59545.13 −861.94 385.85 0.64 0.06 1.00 ATs
2021-12-28 59576.20 −861.32 386.56 0.01 0.06 1.00 ATs

WDSJ05270-6837 2020-12-01 59184.35 540.39 −1349.58 0.11 0.10 1.00 ATs
2021-08-26 59453.36 543.86 −1350.96 0.50 0.50 0.00 UTs
2022-09-15 59837.28 544.79 −1353.06 0.50 0.50 0.00 UTs

WDSJ06345-1114 2021-10-22 59509.27 116.22 696.42 0.15 0.13 0.87 ATs
2021-12-28 59576.18 116.06 695.74 0.05 0.09 −0.73 ATs

WDSJ06364+2717 2020-12-17 59200.23 −713.77 39.29 0.01 0.17 −1.00 ATs

WDSJ08394-3636 2021-10-25 59512.34 −825.29 −454.65 0.24 0.05 −1.00 ATs
2021-11-17 59535.29 −825.42 −455.38 0.11 0.04 −1.00 ATs
2021-12-28 59576.22 −826.16 −455.88 0.03 0.07 1.00 ATs
2022-01-23 59602.22 −826.61 −456.09 0.50 0.50 0.00 UTs
2022-01-24 59604.26 −826.49 −456.16 0.50 0.50 0.00 UTs

WDSJ10269+1713 2022-02-26 59636.26 419.24 −715.69 0.04 0.11 1.00 ATs
2022-02-28 59638.28 418.81 −715.40 0.03 0.22 −1.00 ATs

WDSJ10361-2641 2020-02-06 58885.17 −1105.80 718.54 0.23 0.18 −1.00 ATs
2020-02-20 58899.36 −1106.26 718.39 0.06 1.00 −1.00 ATs
2021-01-07 59221.27 −1108.21 710.21 0.50 0.50 0.00 UTs
2022-01-23 59602.24 −1110.91 700.41 0.50 0.50 0.00 UTs
2022-02-19 59630.27 −1110.77 699.54 0.50 0.50 0.00 UTs
2022-03-20 59658.14 −1110.84 698.79 0.50 0.50 0.00 UTs
2022-03-21 59659.20 −1110.86 698.83 0.50 0.50 0.00 UTs
2023-05-10 60074.10 −1113.06 687.73 0.50 0.50 0.00 UTs

WDSJ14077-4952 2020-02-07 58886.27 −475.06 905.84 0.47 0.04 −1.00 ATs
2023-03-30 60033.30 −403.97 889.10 0.08 0.40 1.00 ATs
2023-05-06 60071.24 −401.15 888.76 0.50 0.50 0.00 UTs
2023-05-10 60074.08 −400.87 888.61 0.50 0.50 0.00 UTs
2023-06-02 60098.11 −399.38 888.27 0.50 0.50 0.00 UTs

WDSJ18516-1719 2021-08-27 59454.00 −315.59 1486.36 0.50 0.50 0.00 UTs
2023-03-30 60033.39 −314.11 1486.51 0.24 0.09 −0.04 ATs
2023-05-07 60071.38 −314.48 1486.62 0.50 0.50 0.00 UTs
2023-07-02 60127.13 −314.35 1486.42 0.50 0.50 0.00 UTs

WDSJ20399+1115 2019-08-15 58710.19 377.11 425.59 0.50 0.50 0.00 UTs
2021-05-29 59363.33 320.21 428.41 0.50 0.50 0.00 UTs
2021-07-25 59420.26 315.09 428.61 0.50 0.50 0.00 UTs
2021-08-24 59450.19 312.55 428.32 0.50 0.50 0.00 UTs
2021-10-20 59507.08 307.42 428.55 0.50 0.50 0.00 UTs

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