Improving the Accuracy of the Martian Ephemeris Short-Term Prediction

Table 6

Position precision of the Martian ephemeris short term prediction (unit: m).

Range bias	Probes’ orbit altitude	Probes’ orbit error	Data-arcs (days)
			30	60	90	120	150	180	210
none	200 km	10 m	170.67	43.58	31.08	27.43	25.13	25.55	34.16
5m	200 km	10 m	170.91	43.45	34.17	40.45	56.40	179.68	277.59
5m	200 km	100 m	2270.27	517.66	336.74	293.59	286.08
5m	5000 km	10 m	31.40	14.07	9.05	23.70	61.72