Table A.1
Astrometry and error budget.
| Filter | Separation MCMC | Separation bias | PA MCMC | PA bias | True north correction | Final separation | Final PA |
|---|---|---|---|---|---|---|---|
| (mas) | (mas) | (deg) | (deg) | (deg) | (mas) | (deg) | |
| PDS 70 b | |||||||
| SPHERE H2 | 173.26 ± 3.18 | 0.21 ± 4.19 | 154.08 ± 0.46 | 0.05 ± 0.66 | − 1.75 ± 0.08 | 173.47 ± 5.26 | 152.37 ± 0.81 |
| SPHERE H3 | 173.88 ± 3.16 | 0.39 ± 3.69 | 154.04 ± 0.42 | − 0.02 ± 0.65 | − 1.75 ± 0.08 | 174.28 ± 4.85 | 152.27 ± 0.77 |
| SPHERE K1 | 182.68 ± 1.14 | 0.12 ± 0.95 | 147.61 ± 0.17 | − 0.01 ± 0.17 | − 1.75 ± 0.08 | 182.80 ± 1.48 | 145.86 ± 0.25 |
| SPHERE K2 | 183.53 ± 1.68 | − 0.16 ± 1.99 | 146.83 ± 0.24 | 0.01 ± 0.25 | − 1.75 ± 0.08 | 183.37 ± 2.61 | 145.09 ± 0.35 |
| NACO L′ | 207.31 ± 9.94 | − 0.22 ± 10.58 | 150.29 ± 1.02 | − 0.08 ± 1.32 | − 0.44 ± 0.10 | 207.09 ± 14.52 | 149.76 ± 1.67 |
| NACO NB4.05 | 205.98 ± 18.80 | 2.65 ± 18.90 | 148.40 ± 1.91 | − 0.07 ± 2.79 | − 0.44 ± 0.10 | 208.62 ± 26.66 | 147.89 ± 3.38 |
| NACO M′ | 179.70 ± 11.22 | − 2.81 ± 10.22 | 138.75 ± 2.39 | 0.53 ± 3.83 | − 0.44 ± 0.10 | 176.88 ± 15.18 | 138.84 ± 4.52 |
| PDS 70 c | |||||||
| NACO NB4.05 | 234.80 ± 13.67 | 3.46 ± 28.15 | 276.79 ± 1.79 | − 0.79 ± 5.25 | − 0.44 ± 0.10 | 238.25 ± 31.29 | 275.56 ± 5.55 |
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