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Table 1

Twin-jet kinematic model for GRS 1758–258 radio jets.

Parameter Value
Angle of the precession cone
Inclination of the jet precession
axis with the LOS
Position angle
Approaching jet (N) sjet = +1
Receding jet (S) sjet = −1
Sense of rotation (clockwise) srot = −1
Precession period Pp = (2774 ± 11) d
Jet velocity vjet = (0.330 ± 0.004)c
Distance d = (8.5 ± 0.1) kpc

Notes. Adapted from Hjellming & Johnston (1981).

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