Table 1
Parameters and root-mean-squared residuals (in range, water production rate, non-gravitational torque, and the total objective function) for the best-fit models.
| Solution | η | λR | λQ | λτ | RMSR (km) | RMSQ | RMSτ | RMSObj |
|---|---|---|---|---|---|---|---|---|
| No NGA | 1029 | 1029 | ||||||
| Ground-based | 675 | 675 | ||||||
| A | 0.7 | 1 | 50 | 50 | 163 | 6.6 | 5.1 | 259 |
| B | 0.7 | 1 | 50 | 50 | 187 | 5.2 | 2.1 | 235 |
| C | 0.7 | 1 | 50 | 50 | 46 | 4.2 | 0.57 | 125 |
| Ca | 0.5 | 1 | 50 | 50 | 115 | 5.5 | 1.32 | 176 |
| Cb | 0.6 | 1 | 50 | 50 | 64 | 4.3 | 0.61 | 130 |
| Cc | 0.8 | 1 | 50 | 50 | 62 | 5.5 | 1.52 | 168 |
Notes. “No NGA” is an N-body-only model computed in REBOUND, while “Ground-based” has an additional force given by the model of Marsden et al. (1973) with parameters from NASA Horizons. A, B, and C use the thermal model described here. The best model (C) is highlighted in bold font.
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