Table C.1
Astrometric positions of the photocentre of orbit 1 relative to component B derived from night-by-night analysis of MARK III and NPOI observations.
| RJD | ρ | θ | a | b | α |
| (mas) | (deg) | (mas) | (mas) | (deg) | |
|
|
|||||
| NPOI | |||||
|
|
|||||
| 51 093.906 | 9.71 | 145.08 | 0.831 | 0.157 | 177.1 |
| 51 097.971 | 11.87 | 148.00 | 0.838 | 0.169 | 169.1 |
| 51 171.722 | 18.31 | 327.53 | 0.844 | 0.153 | 173.7 |
| 51 815.933 | 7.36 | 142.65 | 0.842 | 0.156 | 176.2 |
| 51 835.927 | 11.98 | 149.63 | 0.853 | 0.163 | 171.7 |
| 52 913.988 | 18.72 | 327.60 | 0.628 | 0.111 | 151.8 |
| 52 927.944 | 18.46 | 328.68 | 1.962 | 0.223 | 149.7 |
| 52 930.924 | 18.30 | 329.24 | 0.608 | 0.263 | 167.0 |
| 55 463.974 | 12.48 | 148.89 | 1.874 | 0.256 | 152.7 |
| 55 464.970 | 12.23 | 148.82 | 0.675 | 0.256 | 162.2 |
| 55 465.970 | 12.22 | 149.96 | 0.666 | 0.252 | 162.2 |
| 55 466.962 | 11.74 | 149.30 | 0.653 | 0.254 | 162.7 |
| 55 467.963 | 11.41 | 150.01 | 0.651 | 0.256 | 162.8 |
| 55 468.959 | 11.12 | 150.03 | 0.650 | 0.257 | 162.7 |
| 55 469.886 | 10.93 | 150.16 | 0.624 | 0.274 | 180.0 |
| 55 470.955 | 10.11 | 150.39 | 0.643 | 0.272 | 163.5 |
| 55 999.608 | 10.00 | 334.30 | 2.952 | 0.229 | 130.3 |
| 56 001.610 | 8.30 | 335.23 | 3.155 | 0.250 | 126.8 |
| 56 221.917 | 5.90 | 318.92 | 0.424 | 0.091 | 158.9 |
| 56 227.894 | 9.59 | 322.81 | 0.544 | 0.081 | 160.8 |
| 56 228.900 | 10.52 | 324.06 | 0.609 | 0.098 | 154.1 |
| 56 229.901 | 11.28 | 324.86 | 0.620 | 0.095 | 154.8 |
| 56 230.899 | 11.53 | 324.83 | 0.631 | 0.088 | 156.9 |
| 56 235.880 | 14.12 | 325.89 | 0.527 | 0.081 | 160.3 |
| 56 236.878 | 14.59 | 325.94 | 0.497 | 0.088 | 158.4 |
| 56 237.869 | 15.02 | 326.35 | 0.552 | 0.080 | 161.1 |
| 56 238.864 | 15.45 | 326.38 | 0.550 | 0.080 | 161.2 |
| 56 297.679 | 4.12 | 337.15 | 0.787 | 0.107 | 178.3 |
|
|
|||||
| MARK III | |||||
|
|
|||||
| 48 275.689 | 18.18 | 328.84 | 0.852 | 0.146 | 80.6 |
| 48 548.925 | 15.20 | 323.62 | 2.490 | 0.219 | 72.8 |
| 48 562.870 | 18.02 | 327.93 | 1.066 | 0.314 | 85.6 |
Notes. ρ is the separation, θ the position angle measured counter-clockwise from the north, a, b and α are the semi-major axis, semi-minor axis, and the position angle (again measured counter-clockwise from the north) of the uncertainty ellipse.
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