Table 2.
Parameters of the Apophis model.
| This work | Pravec et al. (2014) | |
|---|---|---|
| λL [deg] |
 |
250 ± 27 |
| βL [deg] |
 |
−75 ± 14 |
| Pψ [h] | 264.18 ± 0.03 | 263 ± 6 |
| Pϕ [h] | 27.3855 ± 0.0003 | 27.38 ± 0.07 |
| ψ0(a) [deg] |
 |
 |
| ϕ0(a) [deg] |
 |
 |
| Ia/Ic |
 |
 |
| Ib/Ic |
 |
 |
| adyn/cdyn | 1.48 ± 0.19 | 1.51 ± 0.18 |
| bdyn/cdyn | 1.06 ± 0.04 | 1.06 ± 0.02 |
| ashape/cshape | 1.56 ± 0.04 | 1.64 ± 0.09 |
| bshape/cshape | 1.12 ± 0.03 |
 |
| E/E0 | 1.018 ± 0.010 | 1.024 ± 0.013 |
Notes. λL and βL are the ecliptic coordinates of the constant angular momentum vector L; ψ0 and ϕ0 are the standard Euler angles at epoch JD0; Ia, Ib and Ic are the dynamical moments of inertia corresponding to the longest-, intermediate-, and shortest-axes; adyn/cdyn and cdyn/cdyn are the axial ratios of a dynamically equivalent ellipsoid; ashape/cshape and cshape/cshape are the axial ratios of a convex shape model; E/E0 is the ratio of the rotational kinetic energy to the lowest energy for the given angular momentum.
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