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Table 3
Masses of Pluto and satellites.
| Body | Pluton | Charon | Nix | Hydra |
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| Obtained with all observations available | ||||
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| GM (km3 s-2) | 873.01 | 98.33 | 0.014 | 0.069 |
| Uncertainty | ±0.43 | ±0.11 | ±0.011 | ±0.014 |
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| Obtained without the observations from Buie et al. (2012) | ||||
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| GM (km3 s-2) | 874.25 | 102.83 | 0.018 | 0.078 |
| Uncertainty | ±2.95 | ±1.87 | ±0.025 | ±0.045 |
Notes.The uncertainty is obtained from the least squares method assuming Gaussian noise of the observations. Masses of Nix and Hydra are probably outside the 1σ limit, see discussion in Sect. 5.1.
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