Lightcurve and Constraints on the Spin Vector of Koronis Family Member (1840) Hus: Illustrating Analysis of a Combined Data Set
Abstract
A new lightcurve of Koronis asteroid family member (1840) Hus records two consecutive rotations and confirms the resolution by Slivan et al. (2021) of the rotation period alias. The data are analyzed together with additional new lightcurves (Fornas et al., 2023) as well as observations from earlier apparitions as a case study to illustrate a spin vector determination described in detail, and as an example of an analysis that is documented so that a reader can understand what level of confidence is merited for the results. The Hus data set yields an unambiguous count of rotations back to 2001, a sidereal rotation period of 4.749052 ± 0.000002 h, and indicates that the spin is prograde with a high-latitude pole.
- Publication:
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Minor Planet Bulletin
- Pub Date:
- July 2023
- Bibcode:
- 2023MPBu...50..190S
- Keywords:
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- Minor Planets;
- Asteroids;
- Light Curves;
- Photometry;
- Periods