Continuous-Thrust Station-Keeping of Cis-Lunar Orbits Using Optimal Sliding Mode Control with Practical Constraints

Table 4

The performance indexes of the station-keeping simulations with both strategies for main nominal orbits.

Orbit	Method	Success rate	Annual cost (m/s)	Mean deviation (km)	Max deviation (km)
2 : 1 DRO	LQR	100%	0.7815	1.6019	25.0749
	OSMC	100%	0.7844	1.5971	27.2347
Halo (3)	LQR	100%	1.7899	1.4281	28.4272
	OSMC	100%	1.7722	1.4091	25.5064
9 : 2 NRHO	LQR	97.5%	26.2789	2.3717	46.9880
	OSMC	99%	26.1684	2.2779	32.8178