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Fig. 1


Projection in the ICRF plane XY of the spin axis of Vesta from Thomas et al. (1997) (green curve), Li et al. (2011) (blue curve) and Russell et al. (2012) (red curve). The ellipses represent the measured uncertainties and in the case of Dawn the ellipse is not visible on the scale of the figure. The black point represents the orientation of the orbital axis of Vesta. The angles λ and ρ represent the longitude and projection of the obliquity of Vesta into the ICRF from the orbital axis.

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