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arXiv · 1011.6577

Mass and density of B-type asteroid (702) Alauda

Patricio Rojo·Jean-Luc Margot
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Abstract

Observations with the adaptive optics system on the Very Large Telescope reveal that outer main belt asteroid (702) Alauda has a small satellite with primary to secondary diameter ratio of $\sim$56. The secondary revolves around the primary in 4.9143 $\pm$ 0.007 days at a distance of 1227 $\pm$ 24 km, yielding a total system mass of (6.057 $\pm$ 0.36) $\times$ 10$^{18}$ kg. Combined with an IRAS size measurement, our data yield a bulk density for this B-type asteroid of 1570 $\pm$ 500 kg~m$^{-3}$.

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Patricio Rojo, Jean-Luc Margot. 2010-11-30. Mass and density of B-type asteroid (702) Alauda. https://doi.org/10.1088/0004-637x%2F727%2F2%2F69

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