Resolve the rotational state of asteroid 2024 WB

Determine whether near-Earth asteroid 2024 WB is an asynchronous binary, a non-principal-axis rotator, or instead exhibits aliasing or noise-driven periodic features by obtaining more extensive photometric observations and applying a physical rotational model.

Background

Asteroid 2024 WB exhibits two nearly comparable periodic signals near 0.22 and 0.30 hours. The authors fit these signals phenomenologically with two independent Fourier series, but that procedure does not distinguish among physically different explanations.

The competing interpretations include an asynchronous binary system, tumbling rotation, aliasing, and noise. The available one-hour lightcurve has insufficient amplitude and temporal coverage to resolve the ambiguity, leaving the physical rotational state unresolved.

References

Alternatively, the presence of these two periods could be due to the asteroid's tumbling state, although other interpretations (e.g., aliasing or noise-driven features) cannot be ruled out.

— Photometric characterization of near-Earth asteroids: rotation, taxonomy, and candidate evidence for internal cohesion  (2609.02563 - Carbognani et al., 2 Sep 2026) in Section 4.2, subsection “Candidate super-fast rotators and cohesive strength”; Appendix, subsection “2024 WB”