Extended Data Table 2 Vesta’s nutation parameters for right ascension (α), declination (δ), and W for the normalized polar moment of inertia value of 0.4208

From: A small core in Vesta inferred from Dawn’s observations

  1. These parameters are computed by numerically integrating rotational dynamics for a constant-density Vesta with the normalized polar moment of inertia \(\bar{C}=0.4505\) and by fitting amplitude, frequency, and phase to the integrated series. The amplitudes scale with the inverse of \(\bar{C}\); thus, estimating the scale factor, \(\chi\), directly measures the normalized polar moment of inertia (see Eq. 4). Here, century is defined as 36525 days.
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