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Table 3
1-σ error bars on the masses given by the least-squares method using two sets of simulated observations with different densities, using m1 = 870.3 km3 s-2, m2 = 101.4 km3 s-2, m3 = 0.039 km3 s-2, and m4 = 0.021 km3 s-2.
| Set of simulated | 1-σ error bars on the masses (km3 s-2) | |||
| observations | ||||
| Pluto | Charon | Nix | Hydra | |
|
|
||||
| 1992–2014, about | 0.76 | 0.20 | 0.0076 | 0.015 |
| 25 observations/year | ||||
| 1992–2014, about | 0.39 | 0.10 | 0.0041 | 0.010 |
| 100 observations/year | ||||
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