Asteroid (216) Kleopatra. Tests of the radar-derived shape model

Details Asteroid (216) Kleopatra. Tests of the radar-derived shape model Asteroid (216) Kleopatra. Tests of the radar-derived shape model

Sep 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002a%26a...392..729h&link_type=abstract

Astronomy and Astrophysics, v.392, p.729-733 (2002)

Astronomy and Astrophysics

Astrophysics

9

Techniques: High Angular Resolution, Occultations, Minor Planets, Asteroids

Scientific paper

The shape model of Ostro et al. (\cite{ostro00}) for (216) Kleopatra - obtained from inversion of the radar data (Hudson & Ostro \cite{hudson94}) - is compared to the high resolution interferometric observations of the HST/FGS astrometer, and additionally to observed lightcurves and stellar occultations data. It appears that the radar nominal-model, while being in global agreement with these data, doesn't adequately reproduce all of them. In particular the flattening seems to be underestimated by ~ 20%. The HST/FGS observations should provide valuable constraints for determining a more refined shape model, since the model obtained from the radar data alone is subject to some uncertainty. Such a refined model of Kleopatra should provide valuable insights for explaining the formation of this interesting object, and the formation and evolution of binary asteroids in general.

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