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Table 6 3D mean RMS of orbit errors for the networks with different number of stations

From: Precise orbit determination for a large LEO constellation with inter-satellite links and the measurements from different ground networks: a simulation study

Station distribution

Case

3D mean RMS of orbit errors for 6 stations (cm)

3D mean RMS of orbit errors for 16 stations (cm)

3D mean RMS of orbit errors for 32 stations (cm)

3D mean RMS of orbit errors for 60 stations (cm)

Median value (cm)

Best possible (cm)

Global

Without ISL

0.66

0.55

0.54

0.53

0.55

0.52

With ISL

0.54

0.53

0.53

0.53

0.53

Europe

Without ISL

2.36

1.73

1.72

1.75

1.74

With ISL

0.59

0.59

0.59

0.59

0.59