Table 1.
Amplitudes of terms for the models applied to the RA and Dec VLBI data.
| RA | Dec | |||||
|---|---|---|---|---|---|---|
| Term | Estimate | Phys. dimension | p value | Estimate | Phys dimension | p value |
| (1) | (2) | (3) | (4) | (5) | (6) | (7) |
| constant | 21.4 ± 13.7 | μas | 0.12 | 148.7 ± 18.7 | μas | 8.8 ⋅ 10−15 |
| (t − t0)3 | – | μas yr−3 | – | 0.2 ± 0.0 | μas yr−3 | 2.6 ⋅ 10−8 |
| (t − t0)2 | 1.6 ± 0.2 | μas yr−2 | 9.8 ⋅ 10−14 | −5.9 ± 0.6 | μas yr−2 | 8.9 ⋅ 10−21 |
| (t − t0) | −23.3 ± 2.4 | μas yr−1 | 2.8 ⋅ 10−20 | 19.8 ± 4.3 | μas yr−1 | 4.7 ⋅ 10−6 |
| sin2πt/7.9 | −73.7 ± 15.6 | μas | 2.9 ⋅ 10−6 | 54.6 ± 21.2 | μas | 0.01 |
| cos2πt/7.9 | −17.3 ± 16.1 | μas | 0.3 | 147.9 ± 20.9 | μas | 3.4 ⋅ 10−12 |
Notes. The columns’ contents: (1) – the model terms; (2) and (5) – the estimated coefficients for RA and Dec, respectively; (3) and (6) – physical dimensions of corresponding coefficients; (4) and (7) – the corresponding FAP values. The p value indicates the probability of obtaining such a parameter from the observational data under the null hypothesis, i.e. assuming that the corresponding term has no effect.
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