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Table 4 Mean RMS of orbit errors in radial, along-track, cross-track and 3D position directions, global network

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

Case

 

Mean RMS of orbit errors in radial direction (cm)

Mean RMS of orbit errors in along-track direction (cm)

Mean RMS of orbit errors in cross-track direction (cm)

Mean RMS of orbit errors in 3D position (cm)

With biases and bias estimation

Without ISL

0.16

0.62

0.15

0.66

 

With ISL

0.11

0.52

0.08

0.54

No biases and no bias estimation

Without ISL

0.17

0.62

0.15

0.67

 

With ISL

0.11

0.51

0.07

0.53

Best possible

 

0.11

0.51

0.01

0.52