Table 1: Stellar characteristics and spectroscopic orbital elements for the outer companions in the HD 38529 and HD 168443 systems, quoted from the original discovery papers (Fischer et al. 2003; and Marcy et al. 2001, respectively). These elements are adopted without modifications for the astrometric solutions.
HD 38529 HD 168443

spectral type G4 IV G6 IV

mass m₁ [ $M_{\odot}$ ] 1.39 1.01

HD 38529c HD 168443c

Period P [days] 2174.3 1770

$\pm$ 30.0 $\pm$ 25

Periastron time T₀ [JD] 2 450 073.8 2 450 250.6

$\pm$ 35.0 $\pm$ 18

Eccentricity e 0.36 0.20

$\pm$ 0.05 $\pm$ 0.01

Longitude of periastron $\omega$ [ $^\circ$ ] 14.7 62.9

$\pm$ 10.0 $\pm$ 3.2

mass function f(m) [ $M_{\odot}$ ] $9.1\times 10^{-7}$ $4.2\times 10^{-6}$

$m_2\!\cdot\sin~i$ [ $M_{\rm Jup}$ ] 12.79 17.15

Semi-major axis [AU] 3.68 2.87

**Table 1:** Stellar characteristics and spectroscopic orbital elements for the outer companions in the HD 38529 and HD 168443 systems, quoted from the original discovery papers (Fischer et al. 2003; and Marcy et al. 2001, respectively). These elements are adopted without modifications for the astrometric solutions.
	HD 38529	HD 168443
spectral type	G4 IV	G6 IV
mass m₁ [ $M_{\odot}$ ]	1.39	1.01
	HD 38529c	HD 168443c
Period P [days]	2174.3	1770
	$\pm$ 30.0	$\pm$ 25
Periastron time T₀ [JD]	2 450 073.8	2 450 250.6
	$\pm$ 35.0	$\pm$ 18
Eccentricity e	0.36	0.20
	$\pm$ 0.05	$\pm$ 0.01
Longitude of periastron $\omega$ [ $^\circ$ ]	14.7	62.9
	$\pm$ 10.0	$\pm$ 3.2
mass function f(m) [ $M_{\odot}$ ]	$9.1\times 10^{-7}$	$4.2\times 10^{-6}$
$m_2\!\cdot\sin~i$ [ $M_{\rm Jup}$ ]	12.79	17.15
Semi-major axis [AU]	3.68	2.87

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