Table 5.
Orbital elements for six stars detected in the 2021 images.
| Star | a[mas] | e | i [°] | Ω [°] |
|---|---|---|---|---|
| S2 | 124.95 ± 0.04 | 0.88441 ± 0.00006 | 134.70 ± 0.03 | 228.19 ± 0.03 |
| S29 | 397.50 ± 1.56 | 0.96927 ± 0.00011 | 144.37 ± 0.07 | 7.00 ± 0.33 |
| S38 | 142.54 ± 0.04 | 0.81451 ± 0.00015 | 166.65 ± 0.40 | 109.45 ± 1.00 |
| S42 | 411.42 ± 7.14 | 0.77385 ± 0.00309 | 39.57 ± 0.19 | 309.60 ± 1.06 |
| S55 | 104.40 ± 0.05 | 0.72669 ± 0.00020 | 158.52 ± 0.22 | 314.94 ± 1.14 |
| S60 | 489.21 ± 18.55 | 0.77733 ± 0.00806 | 126.60 ± 0.15 | 178.03 ± 0.80 |
| ω [°] | tP[yr] | T[yr] | mK | |
| S2 | 66.25 ± 0.03 | 2018.38 ± 0.00 | 16.046 ± 0.001 | 13.95 |
| S29 | 205.79 ± 0.33 | 2021.41 ± 0.00 | 91.04 ± 0.54 | 16.6 |
| S38 | 27.17 ± 1.02 | 2003.15 ± 0.01 | 19.55 ± 0.01 | 17. |
| S42 | 48.29 ± 0.46 | 2022.12 ± 0.02 | 95.9 ± 2.5 | 17.5 |
| S55 | 322.78 ± 1.13 | 2009.44 ± 0.01 | 12.25 ± 0.01 | 17.5 |
| S60 | 30.43 ± 0.21 | 2023.62 ± 0.05 | 124.3 ± 7.1 | 16.3 |
Notes. The parameters listed are the semi major axis, eccentricity, inclination, position angle of the ascending node, longitude of periastron, epoch of periastron passage, orbital period, and K-band magnitude. The stars S62 and S300 are not listed here, as their movement observed so far is consistent with a linear motion. Images serve as starting point for high-accuracy astrometric fitting, and the orbits are determined from positions provided by the latter.
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