Table 2: Parameters of the various fitted orbits shown in Fig. 3. The parameters shown are the mass of the primary, mass of the secondary, major axis length, eccentricity, period, position angle of the ascending node (measured anticlockwise from north in the plane of the sky), inclination between the orbital plane and the plane of the sky, and the longitude of periastron, defined as the angle between the ascending node and the periastron measured in the plane of the true orbit and taken in the direction of the secondary's motion. All the orbits appear prograde on the sky. The last line, labelled "Straight Line'', shows the $\chi ^{2}$ for the best straight-line fit.
Fit M₁( $M_{\odot }$ ) M₂( $M_{\odot }$ ) Major axis (AU) e P(yr) $\Omega$ i $\omega$ $\chi ^{2}$

(a) 1.6 1.0 164.2 0.90 462.7 31 0.3 344 1.32

(b) 4.0 2.5 58.8 0.90 62.7 33 0.4 14 1.37

(c) 4.0 2.5 117.9 0.31 178.0 48 70 300 1.34

(d) 4.0 2.5 206.3 0.69 412.1 243 70 63 1.15

Straight Line 1.56

**Table 2:** Parameters of the various fitted orbits shown in Fig. 3. The parameters shown are the mass of the primary, mass of the secondary, major axis length, eccentricity, period, position angle of the ascending node (measured anticlockwise from north in the plane of the sky), inclination between the orbital plane and the plane of the sky, and the longitude of periastron, defined as the angle between the ascending node and the periastron measured in the plane of the true orbit and taken in the direction of the secondary's motion. All the orbits appear prograde on the sky. The last line, labelled "Straight Line'', shows the $\chi ^{2}$ for the best straight-line fit.
Fit	M₁( $M_{\odot }$ )	M₂( $M_{\odot }$ )	Major axis (AU)	e	P(yr)	$\Omega$	i	$\omega$	$\chi ^{2}$
(a)	1.6	1.0	164.2	0.90	462.7	31	0.3	344	1.32
(b)	4.0	2.5	58.8	0.90	62.7	33	0.4	14	1.37
(c)	4.0	2.5	117.9	0.31	178.0	48	70	300	1.34
(d)	4.0	2.5	206.3	0.69	412.1	243	70	63	1.15
Straight Line									1.56

Source LaTeX | All tables | In the text

	1 Introduction
	2 Observations and data reduction
	3 Results
	4 Conclusions
	References