Environmental Uncertainties
| Parameter name | High cost | Moderate cost | Low cost | Units |
|---|---|---|---|---|
| Truth gravity model | 18 × 18 | 18 × 18 | 18 × 18 | unit-less |
| Filter gravity model | 12 × 12 | 12 × 12 | 12 × 12 | unit-less |
| 1σ reference atm. density | 2.80 × 10−15 | 2.80 × 10−14 | 2.80 × 10−13 | kg/m3 |
| 1σ reference scale height | 58.019 | 580.19 | 5801.9 | meters (m) |
| Translational process noise | 10−10 | 10−08 | 10−08 | m2/s3 |
| (∼ 52 m/rev 3σ) | (∼ 520 m/rev 3σ) | (∼ 520 m/rev 3σ) | ||
| Aerodynamic process noise | 10−10 | 10−08 | 10−08 | m2/s3 |
| (∼ 52 m/rev 3σ) | (∼ 520 m/rev 3σ) | (∼ 520 m/rev 3σ) | ||
| Rotational process noise | 10−16 | 10-14 | 10-14 | 1/s3 |
| (∼ 0.03 rad/rev 3σ) | (∼ 0.3 rad/rev 3σ) | (∼ 0.3 rad/rev 3σ) | ||
| 1σ spacecraft (s/c) ballistic number | 5.56 × 10−6 | 5.56 × 10−5 | 5.56 × 10−4 | m2/kg |
| 1σ spacecraft (s/c) (COM) position | 10−4 | 10−3 | 10−2 | meters (m) |