Table 3: Various orbital solutions for ${\upsilon }$ Sgr derived with the FOTEL program. All epochs are in HJD-2 400 000 and the rms error is error per 1 observation of unit weight. Systemic velocities of individual spectrographs are identified by the running numbers corresponding to those from Table 1. Rather large differences in the individual systemic velocities probably do not reflect real changes but rather compensate for the differences in line identifications and various subsets of lines used by various authors to derive the published RVs.
Element Solution 1 Solution 2 Solution 3 Solution 4
P (d) 137.9331 $\pm $ 0.0022 137.9343 $\pm $ 0.0021 137.9325 $\pm $ 0.0019 137.9343 fixed
$T_{\rm RV max.}$ 33 018.15 $\pm $ 0.23 33 018.13 $\pm $ 0.22 33 018.43 $\pm $ 0.25 33 018.10 $\pm $ 0.21
$T_{\rm Min.I}$ 33 052.63 33 052.61 33 049.15 33 052.59
$T_{\rm Min.II}$ 32 983.66 32 983.64 32 986.98 32 983.62
$T_{\rm periastr.}$ - - 33 022.3 $\pm $ 3.8 -
e 0.0 fixed 0.0 fixed 0.0520 $\pm $ 0.0089 0.0 fixed
$\omega$ (deg) - - 11.1 $\pm $ 9.9 -
K1 (km s-1) 46.77 $\pm $ 0.47 46.49 $\pm $ 0.45 46.9 $\pm $ 1.4 46.49 $\pm $ 0.45
K2 (km s-1) -   - 29.6 $\pm $ 1.7
$\gamma_1$ (km s-1) 7.95 $\pm $ 0.76 7.90 $\pm $ 0.75 8.17 $\pm $ 0.63 7.90 $\pm $ 0.75
$\gamma_2$ (km s-1) 6.4 $\pm $ 1.1 6.4 $\pm $ 1.2 6.6 $\pm $ 1.0 6.4 $\pm $ 1.1
$\gamma_3$ (km s-1) 9.6 $\pm $ 1.1 9.6 $\pm $ 1.2 8.9 $\pm $ 1.1 9.7 $\pm $ 1.2
$\gamma_4$ (km s-1) 6.9 $\pm $ 1.2 6.8 $\pm $ 1.2 6.7 $\pm $ 1.2 6.8 $\pm $ 1.2
$\gamma_{14}$ (km s-1) 9.2 $\pm $ 3.2 9.2 $\pm $ 3.2 10.1 $\pm $ 3.6 9.2 $\pm $ 3.2
$\gamma_5$ (km s-1) 14.63 $\pm $ 0.78 14.69 $\pm $ 0.77 14.47 $\pm $ 0.77 14.68 $\pm $ 0.77/14.3 $\pm $ 1.1
$\gamma_6$ (km s-1) 11.6 $\pm $ 2.1 11.7 $\pm $ 2.1 12.2 $\pm $ 2.6 11.7 $\pm $ 2.1
$\gamma_7$ (km s-1) 14.12 $\pm $ 0.60 14.18 $\pm $ 0.58 14.10 $\pm $ 0.58 14.17 $\pm $ 0.58
$\gamma_8$ (km s-1) 6.83 $\pm $ 0.91 6.83 $\pm $ 0.90 6.5 $\pm $ 1.0 6.79 $\pm $ 0.86
$\gamma_9$ (km s-1) 10.2 $\pm $ 1.4 10.1 $\pm $ 1.4 9.9 $\pm $ 1.2 10.1 $\pm $ 1.4
$\gamma_{10}$ (km s-1) 9.94 $\pm $ 0.90 9.82 $\pm $ 0.88 10.07 $\pm $ 0.85 9.82 $\pm $ 0.89
No. of RVs 211 211 211 211/11
rms (km s-1) 4.61 4.36 4.09 4.32/3.47

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