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Lower panel: the suggested shape of (15) Eunomia is consistent with the strongly asymmetric S-curve obtained for this object. Other possible solutions require the use of other constraints, such as those coming from photometry.

Lower panel: the suggested shape of (15) Eunomia is consistent with the strongly asymmetric S-curve obtained for this object. Other possible solutions require the use of other constraints, such as those coming from photometry.

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We will discuss some specific applications to the rotation state and the shapes of moderately large asteroids, and techniques of observations putting some emphasis on the HST/FGS instrument.

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... The time scale for damping of non-principal-axis rotation is of the order of ( Hestroffer and Tanga, 2006 ): τ damp = μQ ρK 2 1 (D/ 2) 2 ω 3 10 6 Myr , where we assumed ρ = 2 500 kg m −3 , K 2 1 0 . 1 , and the value μQ = 5 × 10 12 Pa ( Harris, 1994 ). In the current state, the damping thus seems negligible and from this point of view one would expect an excited state. ...
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