Table 6
Position accuracy statistics for different elevation cut-off angle cases

Elevation cut-off angle	PU (3D RMS, 3σ)		OD (3D RMS)		Overlap (3D RMS)		OP (3D RMS, 3σ)
	Mean (m)	Std. Dev. (m)	Mean (m)	Std. Dev. (m)	Mean (m)	Std. Dev. (m)	Mean (m)	Std. Dev. (m)
CASE I	35.26	21.51	15.38	17.43	24.31	20.87	78.83	100.92
CASE II	35.23	21.46	14.47	15.37	24.31	20.87	76.41	97.50

PU, position uncertainty; RMS, root mean square; OD, orbit determination; OP, orbit prediction.