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Table 10
Weighted fits of empirical models (Eq. (33)) to the VLBI residuals corresponding to the LC and IAU 2006 precession.
| Empirical model | Coefficient | IAU 2006 model | LC model | |||
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| dX | dY | dX | dY | |||
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| A 0 | + 0.200 ± 0.003 | −0.093 ± 0.003 | + 0.022 ± 0.003 | −0.093 ± 0.003 | ||
| (i) Quadratic | A 1 | + 0.152 ± 0.039 | + 0.081 ± 0.040 | −0.111 ± 0.039 | + 0.082 ± 0.041 | |
| A 2 | + 2.423 ± 0.387 | + 4.239 ± 0.405 | −0.368 ± 0.389 | + 4.246 ± 0.405 | ||
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| (ii) Linear + 18.6 yr | A 0 | + 0.028 ± 0.002 | −0.079 ± 0.002 | + 0.204 ± 0.002 | −0.079 ± 0.002 | |
| A 1 | + 0.188 ± 0.029 | + 0.475 ± 0.030 | −0.230 ± 0.029 | + 0.477 ± 0.030 | ||
| A s | + 0.028 ± 0.003 | + 0.007 ± 0.003 | + 0.041 ± 0.002 | + 0.007 ± 0.003 | ||
| A c | −0.046 ± 0.003 | −0.061 ± 0.003 | −0.042 ± 0.003 | −0.061 ± 0.003 | ||
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| A 0 | −0.006 ± 0.003 | −0.084 ± 0.003 | + 0.030 ± 0.053 | −0.084 ± 0.003 | ||
| A 1 | −0.263 ± 0.041 | + 0.395 ± 0.044 | −0.194 ± 0.039 | + 0.397 ± 0.044 | ||
| (iii) Quadratic + 18.6 yr | A 2 | + 8.428 ± 0.544 | + 1.473 ± 0.580 | −3.783 ± 0.471 | + 1.483 ± 0.580 | |
| A s | + 0.014 ± 0.003 | + 0.136 ± 0.004 | −0.072 ± 0.050 | + 0.136 ± 0.004 | ||
| A c | + 0.067 ± 0.003 | −0.576 ± 0.003 | + 0.067 ± 0.052 | −0.576 ± 0.003 | ||
Notes. The unit is mas.
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