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Table 2

Two sets of parameters (K, A, D) estimated without (Solution A) and with (Solution B) the consideration of the correlation coefficient of observed right ascension and declination at each epoch.

Solution A Solution B
K A D K A D
Fitted Value 0.048 -0.026 -0.001 0.048 -0.028 -0.003
Formal error (1σ) 0.001 0.001 0.001 0.001 0.001 0.001

Notes. The units of the two parameters A, D are arcsec.

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