Table 4.

Results of the adjustment using minimum datum parameters: a posteriori variances, precisions of the adjusted observations and positional precisions of the network points.

Epoch	σ̂0	σ̂Hz[″]	σ̂dist[mm]	σ̂Pos,max[mm]	σ̂Pos,min[mm]	σ̂Pos,avg[mm]
Jun 2008	0.99994	1.4	0.5	0.28	0.22	0.24
Nov 2008	1.00002	1.3	0.4	0.22	0.14	0.18