Table C.1.
Relative astrometry and photometry of PDS 70 b as derived from the sPCA reduction.
| Date | Instr. | Filter | Δ α(mas) | Δ δ(mas) | Sep. (mas) | PA (deg) | Δmag | magapp | Peak S/N |
|---|---|---|---|---|---|---|---|---|---|
| 2012-03-31 | NICI | L′ | 58.7 ± 10.7 | −182.7 ± 22.2 | 191.9 ± 21.4 | 162.2 ± 3.7 | 6.59 ± 0.42 | 14.50 ± 0.42 | 5.6 |
| 2015-05-03 | IRDIS | H2 | 83.1 ± 3.9 | −173.5 ± 4.3 | 192.3 ± 4.2 | 154.5 ± 1.2 | 9.35 ± 0.18 | 18.17 ± 0.18 | 6.3 |
| 2015-05-03 | IRDIS | H3 | 83.9 ± 3.6 | −178.5 ± 4.0 | 197.2 ± 4.0 | 154.9 ± 1.1 | 9.24 ± 0.17 | 18.06 ± 0.17 | 8.1 |
| 2015-05-31 | IRDIS | H2 | 89.4 ± 6.0 | −178.3 ± 7.1 | 199.5 ± 6.9 | 153.4 ± 1.8 | 9.12 ± 0.24 | 17.94 ± 0.24 | 11.4 |
| 2015-05-31 | IRDIS | H3 | 86.9 ± 6.2 | −174.0 ± 6.4 | 194.5 ± 6.3 | 153.5 ± 1.8 | 9.13 ± 0.16 | 17.95 ± 0.17 | 6.8 |
| 2016-05-14 | IRDIS | K1 | 90.2 ± 7.3 | −170.8 ± 8.6 | 193.2 ± 8.3 | 152.2 ± 2.3 | 7.81 ± 0.31 | 16.35 ± 0.31 | 5.5 |
| 2016-05-14 | IRDIS | K2 | 95.2 ± 4.8 | −175.0 ± 7.7 | 199.2 ± 7.1 | 151.5 ± 1.6 | 7.67 ± 0.24 | 16.21 ± 0.24 | 3.6 |
| 2016-06-01 | NaCo | L′ | 94.5 ± 22.0 | −164.4 ± 27.6 | 189.6 ± 26.3 | 150.6 ± 7.1 | 6.84 ± 0.62 | 14.75 ± 0.62 | 2.7 |
| 2018-02-24 | IRDIS | K1 | 109.6 ± 7.9 | −157.7 ± 7.9 | 192.1 ± 7.9 | 147.0 ± 2.4 | 8.10 ± 0.05 | 16.65 ± 0.06 | 16.3 |
| 2018-02-24 | IRDIS | K2 | 110.0 ± 7.9 | −157.6 ± 8.0 | 192.2 ± 8.0 | 146.8 ± 2.4 | 7.90 ± 0.05 | 16.44 ± 0.05 | 13.7 |
Notes. For completeness we list the values from the first five epochs from Keppler et al. (2018). The astrometric values are corrected for true north, and account for the instrument anamorphism (Maire et al. 2016). The true north correction for the IRDIS data recorded on February 24, 2018, is −1.76° ± 0.06°. For true north values from earlier epochs, see Table 4 in Keppler et al. (2018).
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