Open Access
Table B.1
Literature astrometry for PDS 70 b, c, and d.
| Date | MJD (days) |
Instrument | ΔR.A. (mas) |
σ ΔR.A. (mas) |
ΔDec. (mas) |
σ ΔDecl. (mas) |
Sep. (mas) |
σSep. (mas) |
P.A. (deg) |
σP.A. (deg) |
Ref. | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| b | 2012-03-31 | 56017 | NICI | 58.7 | 10.7 | −182.7 | 22.2 | 191.9 | 21.4 | 162.2 | 3.7 | [1] |
| b | 2014-05-10 | 56787 | SINFONI | 70.3 | 9.6 | −180.3 | 5.9 | 193.5 | 4.9 | 158.7 | 3.0 | [3] |
| b | 2015-05-03 | 57145 | IRDIS | 83.1 | 3.9 | −173.5 | 4.3 | 192.3 | 4.2 | 154.5 | 1.2 | [1] |
| b | 2015-05-03 | 57145 | IRDIS | 83.9 | 3.6 | −178.5 | 4.0 | 197.2 | 3.9 | 154.9 | 1.1 | [1] |
| b | 2015-06-01 | 57174 | IRDIS | 89.4 | 6.0 | −178.3 | 7.1 | 199.5 | 6.9 | 153.4 | 1.8 | [1] |
| b | 2015-06-01 | 57174 | IRDIS | 86.9 | 6.2 | −174.0 | 6.4 | 194.5 | 6.3 | 153.5 | 1.8 | [1] |
| b | 2016-05-14 | 57522 | IRDIS | 90.2 | 7.3 | −170.8 | 8.6 | 193.2 | 8.3 | 152.2 | 2.3 | [1] |
| b | 2016-05-14 | 57522 | IRDIS | 95.2 | 4.8 | −175.0 | 7.7 | 199.2 | 7.1 | 151.5 | 1.6 | [1] |
| b | 2016-06-01 | 57540 | NaCo | 94.5 | 22.0 | −164.4 | 27.6 | 189.6 | 26.3 | 150.6 | 7.1 | [1] |
| b | 2018-02-24 | 58174 | IRDIS | 109.6 | 7.9 | −157.7 | 7.9 | 192.1 | 7.9 | 147.0 | 2.4 | [2] |
| b | 2018-02-24 | 58174 | IRDIS | 110.0 | 7.9 | −157.6 | 8.0 | 192.2 | 8.0 | 146.8 | 2.4 | [2] |
| b | 2018-06-20 | 58289 | MUSE | 96.8 | 25.4 | −147.9 | 25.9 | 176.8 | 25 | 146.8 | 8.5 | [4] |
| b | 2019-06-08 | 58642 | NIRC2 | 110.9 | 6.8 | −136.4 | 6.8 | 175.8 | 6.9 | 140.9 | 2.2 | [6] |
| b | 2019-07-16 | 58680 | GRAVITY | 102.626 | 0.087 | −139.879 | 0.291 | 173.49 | 0.24 | 143.733 | 0.061 | [7] |
| b | 2020-02-10 | 58889 | GRAVITY | 104.545 | 0.229 | −135.081 | 0.077 | 170.81 | 0.15 | 142.262 | 0.063 | [7] |
| b | 2021-07-15 | 59410 | IRDIS | 118 | 11 | −118 | 11 | 167.5 | 11.0 | 135.0 | 4.0 | [10] |
| b | 2021-08-21 | 59447 | IRDIS | 108.5 | 8.2 | −118.0 | 8.2 | 160.3 | 8.0 | 137.4 | 3.0 | [10] |
| b | 2021-08-22 | 59448 | IRDIS | 110.8 | 5.9 | −125.2 | 5.9 | 167.2 | 6.0 | 138.5 | 2.0 | [10] |
| b | 2021-09-02 | 59459 | IRDIS | 109.8 | 5.9 | −128.5 | 6.0 | 169.0 | 6.0 | 139.5 | 2.0 | [10] |
| b | 2021-09-04 | 59461 | IRDIS | 110.1 | 5.9 | −128.0 | 6.0 | 168.9 | 6.0 | 139.3 | 2.0 | [10] |
| b | 2022-02-28 | 59638 | IRDIS | 114.3 | 5.2 | −104.0 | 5.2 | 154.6 | 5.0 | 132.3 | 2.0 | [10] |
| b | 2022-04-24 | 59693 | MagAO-X | 110.8 | 2.3 | −112.8 | 2.3 | 158.1 | 3.0 | 135.5 | 0.5 | [11] |
| b | 2023-02-24 | 59999 | NIRISS | 110.7 | 6.7 | −97.9 | 6.3 | 147.8 | 8.2 | 131.5 | 1.6 | [8] |
| b | 2023-03-08 | 60011 | MagAO-X | 116.7 | 2.4 | −105.8 | 2.3 | 157.5 | 3.0 | 132.18 | 0.5 | [11] |
| b | 2023-03-08 | 60011 | NIRCam | 128 | 11 | −104 | 11 | 164.5 | 10.4 | 129.0 | 4.1 | [9] |
| b | 2024-03-25 | 60394 | MagAO-X | 115.0 | 2.4 | −97.1 | 2.2 | 150.5 | 3.0 | 130.18 | 0.50 | [11] |
| c | 2014-05-10 | 56787 | SINFONI | −212.1 | 10.5 | 66.2 | 7.3 | 222.2 | 10.3 | 287.3 | 2.0 | [13] |
| c | 2018-02-25 | 58174 | IRDIS | −205.0 | 13.0 | 41.0 | 6.0 | 209 | 13 | 281.2 | 0.5 | [5] |
| c | 2018-06-20 | 58289 | MUSE | −233.7 | 26.7 | 28.7 | 25.0 | 235.5 | 25.0 | 277.0 | 6.5 | [4] |
| c | 2019-03-06 | 58548 | IRDIS | −222.0 | 8.0 | 39.0 | 4.0 | 225 | 8 | 279.9 | 0.5 | [5] |
| c | 2019-06-08 | 58642 | NIRC2 | −219.7 | 7.8 | 40.3 | 8.0 | 223.4 | 8.0 | 280.4 | 2.0 | [6] |
| c | 2019-07-19 | 58683 | GRAVITY | −214.98 | 0.296 | 32.323 | 0.396 | 217.40 | 0.30 | 278.55 | 0.10 | [7] |
| c | 2019-07-19 | 58683 | GRAVITY | −214.929 | 0.335 | 32.222 | 0.437 | 217.33 | 0.34 | 278.53 | 0.11 | [7] |
| c | 2020-02-10 | 58889 | GRAVITY | −214.333 | 0.144 | 27.212 | 0.249 | 216.05 | 0.15 | 277.236 | 0.066 | [7] |
| c | 2021-07-15 | 59410 | IRDIS | −208.2 | 5.0 | 12.4 | 3.6 | 208.6 | 5.0 | 273.4 | 1.0 | [10] |
| c | 2021-08-22 | 59448 | IRDIS | −203.6 | 8.0 | 7.5 | 7.1 | 203.7 | 8.0 | 272.1 | 2.0 | [10] |
| c | 2021-09-02 | 59459 | IRDIS | −207.0 | 6.0 | 11.0 | 7.2 | 207.3 | 6.0 | 273.2 | 2.0 | [10] |
| c | 2022-02-28 | 59638 | IRDIS | −195.6 | 9.0 | 19 | 10 | 196.5 | 9.0 | 275.5 | 3.0 | [10] |
| c | 2023-02-24 | 59999 | NIRISS | −221.1 | 8.7 | −1.5 | 5.4 | 221.1 | 8.7 | 269.6 | 1.4 | [8] |
| c | 2023-03-08 | 60011 | MagAO-X | −206.5 | 1.0 | 0.0 | 1.0 | 206.5 | 1.0 | 270.0 | 0.25 | [11] |
| c | 2023-03-08 | 60011 | NIRCam | −196 | 23 | −1 | 23 | 195.7 | 23.3 | 269.7 | 6.8 | [9] |
| c | 2024-03-25 | 60394 | MagAO-X | −206.4 | 3.0 | −7.2 | 1.8 | 206.55 | 3.0 | 268.0 | 0.50 | [11] |
| d | 2014-05-10 | 56787 | SINFONI | −23.0 | 9.2 | 114.9 | 12.4 | 117.2 | 12.5 | 348.7 | 4.4 | [12] |
| d | 2016-06-01 | 57540 | IFS | −49.0 | 22.3 | 103.3 | 18.4 | 114.3 | 17.1 | 334.6 | 11.7 | [12] |
| d | 2018-02-25 | 58174 | IFS | −79.3 | 5.8 | 87.2 | 5.8 | 117.9 | 6.0 | 317.7 | 2.7 | [12] |
| d | 2019-03-06 | 58548 | IFS | −84.1 | 7.3 | 86.2 | 7.3 | 120.4 | 8.3 | 315.7 | 2.9 | [12] |
| d | 2021-05-17 | 59351 | IFS | −86.3 | 11.5 | 55.2 | 10.7 | 102.4 | 12.1 | 302.6 | 5.6 | [12] |
| d | 2021-08-21 | 59447 | IFS | −89.9 | 12.7 | 64.6 | 12.6 | 110.7 | 12.7 | 305.7 | 6.5 | [12] |
| d | 2021-09-03 | 59460 | IFS | −92.4 | 10.9 | 52.7 | 11.3 | 106.4 | 10.7 | 299.7 | 6.2 | [12] |
| d | 2022-02-28 | 59638 | IFS | −95.2 | 6.7 | 53.7 | 7.2 | 109.3 | 6.5 | 299.4 | 3.9 | [12] |
| d | 2023-03-08 | 60011 | NIRCam | −95 | 23 | 40 | 23 | 103.4 | 23.2 | 293.0 | 12.7 | [9] |
Notes. References: [1] Keppler et al. (2018); [2] Müller et al. (2018); [3] Christiaens et al. (2019); [4] Haffert et al. (2019); [5] Mesa et al. (2019); [6] Wang et al. (2020); [7] Wang et al. (2021); [8] Blakely et al. (2025); [9] Christiaens et al. (2024); [10] Wahhaj et al. (2024); [11] Close et al. (2025); [12] Hammond et al. (2025); [13] This work.
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