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Table A.5.
Astrometry measurements of AB system.
| Date | sep | σsep | (O-C)sepa | P.A. | σPA | (O-C)P.A.a |
|---|---|---|---|---|---|---|
| (″) | (″) | (″) | (°) | (°) | (°) | |
| 1909.5 | 1.0 | 0.1 | 0.3106 | 190.0 | 2.0 | -1.2605 |
| 1910.3 | 0.8 | 0.1 | 0.1243 | 180.0 | 2.0 | 8.8414 |
| 1912.66 | 0.65 | 0.1 | 0.0153 | 187.0 | 2.0 | 2.1753 |
| 1926.25 | 0.41 | 0.1 | 0.0266 | 192.5 | 2.0 | 0.0270 |
| 1930.39 | 0.37 | 0.1 | 0.0667 | 194.0 | 2.0 | 0.6809 |
| 1936.32 | 0.23 | 0.1 | 0.0422 | 204.7 | 2.0 | -3.7228 |
| 1937.83 | 0.24 | 0.1 | 0.0813 | 204.1 | 2.0 | -0.0558 |
| 1937.98 | 0.18 | 0.1 | 0.0241 | 206.8 | 2.0 | -2.3872 |
| 1959.25 | 0.18 | 0.1 | -0.1072 | 348.7 | 1.0 | 6.4093 |
| 1960.27 | 0.2 | 0.1 | -0.1068 | 0.0 | 1.0 | -4.1886 |
| 1963.85 | 0.26 | 0.1 | -0.1151 | 358.7 | 1.0 | -1.0060 |
| 1964.35 | 0.3 | 0.1 | -0.0845 | 1.1 | 1.0 | -3.1961 |
| 1967.28 | 0.32 | 0.1 | -0.1188 | 1.9 | 1.0 | -2.9466 |
| 1976.13 | 0.52 | 0.1 | -0.0713 | 2.2 | 1.0 | -1.1944 |
| 1979.21 | 0.59 | 0.1 | -0.0486 | 1.1 | 1.0 | 0.3996 |
| 1991.25 | 0.775 | 0.01 | -0.0021 | 2.9 | 1.0 | 0.0363 |
| 1991.3882 | 0.777 | 0.01 | -0.0011 | 3.2 | 1.0 | -0.2498 |
| 1996.1826 | 0.807 | 0.02 | 0.0045 | 3.1 | 1.0 | 0.3122 |
| 2004.0860 | 0.78 | 0.01 | -0.0032 | 3.0 | 1.0 | 1.1590 |
| 2006.1913 | 0.745 | 0.01 | -0.0169 | 3.7 | 1.0 | 0.6725 |
| 2009.2638 | 0.7139 | 0.002 | -0.0021 | 4.22 | 0.71 | 0.4920 |
| 2009.2638 | 0.7144 | 0.002 | -0.0016 | 4.22 | 0.9 | 0.4920 |
| 2009.2638 | 0.714 | 0.002 | -0.0020 | 4.26 | 0.31 | 0.4520 |
| 2011.0355 | 0.6853 | 0.002 | 0.0045 | 5.04 | 0.61 | -0.1085 |
| 2011.0355 | 0.6877 | 0.002 | 0.0069 | 4.95 | 0.98 | -0.0185 |
| 2013.1272 | 0.63 | 0.002 | -0.0003 | 5.33 | 0.34 | -0.1047 |
| 2013.1272 | 0.6291 | 0.002 | -0.0012 | 5.34 | 0.56 | -0.1147 |
| 2014.0581 | 0.6021 | 0.002 | -0.0027 | 4.98 | 0.43 | 0.3929 |
| 2015.1696 | 0.571 | 0.002 | -0.0006 | 5.56 | 0.26 | 0.0073 |
| 2015.1696 | 0.572 | 0.002 | -0.0001 | 5.46 | 0.71 | 0.1073 |
| 2016.0485 | 0.546 | 0.002 | 0.0019 | 5.74 | 0.33 | -0.0015 |
| 2016.9603 | 0.513 | 0.002 | 0.0005 | 5.46 | 0.33 | 0.4765 |
| 2018.0856 | 0.471 | 0.002 | -0.0009 | 6.68 | 0.33 | -0.4625 |
| 2019.1399 | 0.429 | 0.002 | -0.0021 | 6.46 | 0.20 | 0.0700 |
| 2019.9503 | 0.395 | 0.002 | -0.0036 | 6.92 | 0.22 | -0.1055 |
| 2020.9961 | 0.357 | 0.002 | 0.0023 | 7.75 | 0.22 | -0.4891 |
| 2021.3159 | 0.344 | 0.002 | 0.0022 | 7.08 | 0.24 | 0.3404 |
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