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

Table 6

Long-term lunar gravity effects on orbit determination of lunar orbiter (filter only).

Lunar gravity model (70 × 70)	Orbit position uncertainty (m, RMS)				Orbit position accuracy (m, RMS)
	R	I	C	3D	R	I	C	3D
GLGM2	196.18	8443.55	112.33	8446.58	354426.77	681952.52	3044.51	768561.54
LP100K	57.04	199.69	74.99	220.80	6.76	20.56	9.31	23.56
LQ150Q	57.56	201.46	75.73	222.79	6.80	21.03	9.32	23.99
GRAIL420A	20.01	52.83	16.26	58.79	3.24	10.06	3.58	11.16
GRAIL660B	20.01	52.83	16.26	58.79	3.24	10.07	3.58	11.16