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Table 1.

Statistics of the VLBI solutions.

Solution No. sessions No. observations Postfit rms Reduced χ2 Median error (μas)
(delays) ps α cosδ δ
OPA 6362 12 865 922 25.3 0.92 93 162
Decimation-A 3181 6 429 635 25.3 0.92 161 286
Decimation-B 3181 6 436 287 25.3 0.93 167 287

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