Image Details
Caption: Figure 3.
Panel (A): Pole position of Psyche in the J2000 frame over a period of 10 yr, assuming homogeneous density distribution with 2016 January 1, 12:00:00 TDB as the initial epoch. The initial position is given by the psyche_v01.tpc SPICE kernel. Panel (B): Angular deviation of Psyche’s pole from the initial position for a range of dynamic ellipticities H. The inset shows the pole deviation of 20 yr, illustrating steady increase of pole deviation due to precession. The initial epoch for computing the pole deviation is taken to be 2029 August 1, 12:00:00 TDB, the approximate start of the Psyche mission’s science phase.
© 2026. The Author(s). Published by the American Astronomical Society.