Table 2
Parameters of the helical model.
| Component | t ej | θ | γ 0 | ω 0 | r 0 | ψ | φ 0 | χ | △ α | △ δ |
| [°] |
|
[ly] | [°] | [°] | [°] | [mas] | [mas] | |||
|
|
||||||||||
| B1 | 1986.6 ± 0.2 | 1.4 ± 0.2 | 19.8 ± 1.3 | 15.5 ± 0.1 | 0.41 ± 0.7 | 0.21 ± 0.04 | 21 ± 6 | 94 ± 2 | 0.10 | 0.01 |
| B2 | 1990.1 ± 0.2 | 1.0 ± 0.1 | 19.5 ± 0.4 | 23.2 ± 0.1 | 0.30 ± 0.1 | 0.16 ± 0.06 | 65 ± 15 | 87.0 ± 2 | − 0.05 | − 0.04 |
| B3 | 1994.1 ± 0.1 | 0.6 ± 0.1 | 19.5 ± 0.6 | 20.7 ± 0.1 | 0.22 ± 0.1 | 0.12 ± 0.02 | − 79 ± 13 | 73 ± 5 | − 0.07 | 0.02 |
Notes. Column (1): observed components; Col. (2): time of ejection; Col. (3): angle between the jet axis and the line of sight; Col. (4): Lorentz factor; Col. (5): angular velocity; Col. (6): initial radius; Col. (7): opening angle; Col. (8): initial phase angle; Col. (9): projective position angle of jet axis in sky plane; Col. (10): offset of ejection in right ascension; Col. (11): offset of ejection in declination.
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