16525 Shumarinaiko: A New Nysa Binary
Abstract
Analysis of CCD photometric observations of the Nysa group asteroid 16525 Shumarinaiko made in 2013 January shows that the asteroid is a binary system. A bimodal lightcurve for the primary has a period 2.5932 ± 0.0003 h with an amplitude of 0.08 ± 0.01 mag. The orbital period of the presumed satellite is 14.409 ± 0.005 h. Based on the depth of the mutual events, the satellite-primary diameter ratio is estimated to be Ds/Dp 0.16 ± 0.02. Indications are that the satellite is elongated and tidally-locked to its orbital period.
- Publication:
-
Minor Planet Bulletin
- Pub Date:
- July 2013
- Bibcode:
- 2013MPBu...40..124W