Research Article
GPS Based Reduced-Dynamic Orbit Determination for Low Earth Orbiters with Ambiguity Fixing
Table 3
RPOD EKF parameters settings.
| Initial values | A priori variance | Correlation time | Process noise | Observation noise |
| [nm/s2] | 100 | [m] | 30 | [s] | 500 | [nm/s2] | 200 | [cm] | 80 | [nm/s2] | 100 | [m/s] | 0.1 | [s] | 100 | [nm/s2] | 600 | [cm] | 0.8 | [nm/s2] | 100 | | 0.2 | — | — | [nm/s2] | 400 | — | — | | 1.3 | | 0.4 | — | — | [m] | 500 | — | — | | 2.3 | — | — | — | — | — | — | — | — |
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