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Table 2.

Numerical values of Phobos’ free libration modes from moment of inertia.

P1 (rad day−1) P2 (rad day−1) τ (rad day−1) References
27.2697 7.4983 12.2749 Willner et al. (2010)
27.2061 7.3423 12.4199 Willner et al. (2014)
27.2038 7.3433 12.4111 Le Maistre et al. (2019)
27.1662 7.3953 12.1868 This work

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