Research Article
GPS Based Reduced-Dynamic Orbit Determination for Low Earth Orbiters with Ambiguity Fixing
Table 2
Orbit models used in this paper.
| Satellite model | Cannonball model (constant surface and mass) [25] |
| Earth gravity field | GGM03S 75 × 75 [39] |
| Earth tides | Solid tides [40] |
| Atmospheric density | Harris-Priester [25] |
| Solar radiation pressure | Assuming the surface normal is always aligned with the sun Including eclipses and distance from the sun [25] |
| Planetary ephemerides | Low precision model [25] |
| Coordinates transformations | IERS1996/IAU1980 transformations [41] |
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