Table 2
Io’s and Europa’s degree−2 tidal parameter uncertainties achievable by JUICE, Clipper, and the joint analysis (1σ)
| Europa | A priori sigma | Mazarico et al. (2023) | JUICE | Clipper | JUICE+Clipper | σJ+EC/σECv |
|---|---|---|---|---|---|---|
| Re(k2) | Unconstr. | 0.0047−0.009 | 2.03 | 0.0052 | 0.0045 | 0.86 |
| Im(k2) | Unconstr. | 0.07 | 0.0051 | 0.0042 | 0.83 | |
| Io | Lainey et al. (2009) | |||||
| Im(k2) | Unconstr. | 3.0 × 10−3 | 4.5 × 10−2 | 2.9 × 10−2 | (0.13–1.6) × 10−2 | 0.04 |
Notes. The adopted a priori uncertainties are shown in the second column. For comparison, the third column reports the expected uncertainties for Europa Clipper from Mazarico et al. (2023) for Europa, while Lainey et al. (2009) for Io. The range reported for Mazarico et al. (2023) do not take into account the corrective coefficient considered in Table 5 of Mazarico et al. (2023). The column “σJ+EC/σEC” represents the ratio between the uncertainty of JUICE+Clipper and that of Europa Clipper-only.
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