Research Article
A New Celestial Navigation Method for Spacecraft on a Gravity Assist Trajectory
Table 1
Performance comparison of different methods.
| | Method | Position estimation error (RMS) (km) | Velocity estimation error (RMS) (m/s) | Position estimation error (Max) (km) | Velocity estimation error (Max) (m/s) |
| | Direct calculation method | 192.50 | — | 1816.2 | — | | Filter method | 71.725 | 0.1507 | 154.68 | 0.4937 | | New method | 6.2082 | 0.1118 | 16.787 | 0.4486 |
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