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Table 3
Jupiter’s GM, degree-2 gravity, and tidal parameter uncertainties achievable by JUICE, Clipper, and the joint analysis (1σ)
| Jupiter | A priori sigma | Durante et al. (2020) | Lainey et al. (2009) | JUICE (Q constant) | Europa Clipper (Q constant) | JUICE+Clipper (Q constant) | JUICE+Clipper (freq. dep.) | Units |
|---|---|---|---|---|---|---|---|---|
| GM | 2.8 | 0.303 | 0.327 | 0.175 | 0.186 | km3/s2 | ||
| J2 | 56 | 0.56 | 17.93 | 24.44 | 4.93 | 5.11 | ×10−9 | |
| Re(k2) | 50 | 0.6 | 2.15 | 18.15 | 1.25 | 1.26 | ×10−2 | |
| Im(k2) | Unconstr. | 0.020 | 0.20 | 0.12 | 0.011 | ×10−4 | ||
| Im(k2) (Io) | Unconstr. | 0.210 | ×10−4 | |||||
| Im(k2) (Eur) | Unconstr. | 13.02 | ×10−4 | |||||
| Im(k2) (Gan) | Unconstr. | 1.57 | ×10−4 | |||||
| Im(k2) (Cal) | Unconstr. | 40.10 | ×10−4 |
Notes. The adopted a priori uncertainties are shown in the second column. For comparison, the third and fourth columns report the uncertainties from Durante et al. (2020) and Lainey et al. (2009).
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