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

Table 7

Influence of degree and order of GLGM2 model on orbit determination of lunar orbiter.

Lunar gravity model (GLGM2)	Orbit position uncertainty (m, RMS)				Orbit position accuracy (m, RMS)
	R	I	C	3D	R	I	C	3D
21 × 21	57.95	344.75	63.17	355.25	1094.67	16841.59	2531.78	17065.97
40 × 40	58.59	306.53	55.83	317.04	1108.16	13931.97	2497.67	14197.40
70 × 70	64.33	244.71	61.15	260.31	1150.14	9116.97	2508.43	9525.45