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

Table 5

The performance indexes of the seven cases for the 9 : 2 NRHO.

Cases	Success rate	Annual cost (m/s)	Mean deviation (km)	Max deviation (km)
(a) No engine limitation	99.5%	23.8698	1.9585	30.9285
(b) No propulsion error	99.5%	26.3403	2.3068	33.4983
(c) No limitation of the propulsion system	99.5%	24.0427	1.9746	31.6678
(d) Lower navigation interval	100%	28.1278	2.5591	33.6433
(e) No navigation error	99.5%	14.1253	1.0384	26.3525
(f) No limitation of the navigation system	100%	14.1133	1.0363	27.1740
(g) No limitation	100%	3.0066	0.2425	26.5865