Table 4: Orbital solutions of RZ Cas assuming a circular orbit (solution I) as well as a non-circular orbit (solution II). The orbital period is fixed to P=1.1952572. $T_{\rm P}$ is the epoch of periastron passage, T₁ corresponds to Min I, epochs are given as HJD 2 452 100+. For comparison we list also the elements obtained by Duerbeck & Hänel (1978) from metal lines.
Duerbeck solution I solution II

K₁ 70.5(1.4) 71.36(12) 71.691(76) km s^-1

$\gamma_1$ -45.5(1.1) -44.035(95) -43.946(54) km s^-1

K₂ -200.78(34) -194.88(67) km s^-1

$\gamma_2$ -44.42(21) -44.56(51) km s^-1

T₁ 93.3872(57) 93.388(15) (from $T_{\rm P}$ )

$T_{\rm P}$ 93.3857(80)

e 0.024(23) 0.0288(12)

$\omega$ 87(2) 89.2(2.4) deg

**Table 4:** Orbital solutions of RZ Cas assuming a circular orbit (solution I) as well as a non-circular orbit (solution II). The orbital period is fixed to P=1.1952572. $T_{\rm P}$ is the epoch of periastron passage, T₁ corresponds to Min I, epochs are given as HJD 2 452 100+. For comparison we list also the elements obtained by Duerbeck & Hänel (1978) from metal lines.
	Duerbeck	solution I	solution II
K₁	70.5(1.4)	71.36(12)	71.691(76)	km s^-1
$\gamma_1$	-45.5(1.1)	-44.035(95)	-43.946(54)	km s^-1
K₂		-200.78(34)	-194.88(67)	km s^-1
$\gamma_2$		-44.42(21)	-44.56(51)	km s^-1
T₁		93.3872(57)	93.388(15)	(from $T_{\rm P}$ )
$T_{\rm P}$			93.3857(80)
e	0.024(23)		0.0288(12)
$\omega$	87(2)		89.2(2.4)	deg

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