Research Article
Influence of the Choice of Lunar Gravity Model on Orbit Determination for Lunar Orbiters
Table 16
Effect of lunar altitude of lunar gravity model on orbit determination of lunar orbiter.
| | Lunar gravity model | Lunar altitude | Orbit position uncertainty (m, RMS) | Orbit position accuracy (m, RMS) | | R | I | C | 3D | R | I | C | 3D |
| GLGM2
(70 × 70) | 50 km
100 km
200 km | 66.37
64.33
56.53 | 461.50
244.71
322.47 | 59.46
61.15
59.11 | 470.03
260.31
332.68 | 1118.06
1150.14
685.62 | 40373.16
9116.97
6611.22 | 4528.51
2508.43
794.69 | 40641.73
9525.45
6694.01 |
| LP100K
(100 × 100) | 50 km
100 km
200 km | 37.63
21.33
10.58 | 102.75
57.88
28.18 | 67.89
36.69
17.43 | 128.78
71.77
34.78 | 5.79
3.26
1.77 | 17.85
9.16
4.73 | 12.43
5.31
2.70 | 22.51
11.08
5.72 |
| LQ150Q
(150 × 150) | 50 km
100 km
200 km | 37.80
21.49
10.72 | 103.16
58.29
28.53 | 68.18
36.96
17.66 | 129.30
72.29
35.23 | 6.34
3.27
1.76 | 19.79
9.23
4.72 | 13.62
5.33
2.69 | 24.85
11.15
5.71 |
| GRAIL420A
(420 × 420) | 50 km
100 km
200 km | 4.66
4.72
5.04 | 14.38
14.25
14.65 | 8.32
8.29
8.69 | 17.26
17.15
17.76 | 0.92
0.62
0.69 | 3.76
2.08
2.79 | 2.15
1.23
1.80 | 4.43
2.50
3.39 |
| GRAIL660B
(660 × 660) | 50 km
100 km
200 km | 4.66
4.72
5.04 | 14.38
14.25
14.65 | 8.32
8.29
8.69 | 17.26
17.15
17.76 | 0.91
0.62
0.70 | 3.81
2.09
2.78 | 2.16
1.25
1.79 | 4.47
2.51
3.38 |
|
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