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Table 2
Proper motion of the emission knots from 1990 to 2014 HST observations.
| Knot | rjet | PA | PMrel ± rms | JD0 ± rms |
|---|---|---|---|---|
| (epoch = 1994.8) | ||||
| [′′] | [°] | [′′ yr−1] | ||
| NE jet | ||||
| N2 | 0.27 | − 0.018 ± 0.004 | ||
| N3 | 0.91 | 45.5 | 0.037 ± 0.001 | 2 440 329 ± 344 |
| N4 | 1.10 | 51.8 | 0.013 ± 0.007 | 2 418 146 ± 23 809 |
| N5 | 1.32 | 55.6 | 0.039 ± 0.007 | 2 437 410 ± 2066 |
| N6 | 1.52 | 58.2 | 0.040 ± 0.009 | 2 435 895 ± 3149 |
| A1 | 4.82 | 46.8 | 0.174 ± 0.015 | 2 439 572 ± 846 |
| A2 | 4.16 | 49.0 | 0.125 ± 0.026 | 2 437 633 ± 2451 |
| A2a | 3.85 | 49.4 | ||
| SW jet | ||||
| S1 | 0.58 | 213.9 | 0.086 ± 0.008 | 2 447 199 ± 181 |
| S2 | 0.98 | 230.4 | − 0.007 ± 0.008 | |
| S3 | 1.54 | 230.9 | 0.055 ± 0.011 | 2 439 491 ± 1932 |
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