Table 2: Orbital elements for $\theta $ Car. P is the orbital period, $v_\gamma $ is the system velocity, K1 the semi-amplitude of the radial velocity curve of component 1, e is the eccentricity, $\omega _1$ the periastron longitude, a1 the semi-major axis, i the orbital inclination, $t({\rm conj})$ the time of the primary conjunction, and $t({\rm per})$ the time of the periastron passage.
P 2.20288 $\pm$ 0.00001 d
$v_\gamma $ 20.18 $\pm$ 0.04 km s-1
K1 18.93 $\pm$ 0.05 km s-1
e 0.129 $\pm$ 0.002
$\omega _1$ 81.8 $\pm$ 1.7$^\circ$
a1 sin i 0.00395 $\pm$ 0.00014 AU
$t({\rm conj})$ MJD 54 302.4367 $\pm$ 0.0012
$t({\rm per})$ MJD 54 302.3984 $\pm$ 0.0092

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