Influence of the Choice of Lunar Gravity Model on Orbit Determination for Lunar Orbiters

Table 9

Influence of degree and order of LP150Q model on orbit determination of lunar orbiter.

Lunar gravity model (LP150Q)	Orbit position uncertainty (m, RMS)				Orbit position accuracy (m, RMS)
	R	I	C	3D	R	I	C	3D
21 × 21	33.70	90.78	57.87	112.81	8.27	20.82	13.81	26.32
40 × 40	22.38	60.66	38.49	75.24	4.27	12.21	6.66	14.55
70 × 70	21.68	58.79	37.28	72.91	3.29	9.26	5.36	11.19
100 × 100	21.56	58.49	37.08	72.53	3.27	9.24	5.35	11.17
150 × 150	21.49	58.29	36.96	72.29	3.27	9.23	5.33	11.15