The shape of asteroid 1917 Cuyo

Details The shape of asteroid 1917 Cuyo The shape of asteroid 1917 Cuyo

Dec 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992acm..proc..447o&link_type=abstract

In Lunar and Planetary Inst., Asteroids, Comets, Meteors 1991 p 447-450 (SEE N93-19113 06-90)

Astronomy and Astrophysics

Astronomy

Asteroids, Light Curve, Radar Astronomy, Rotation, Shapes

Scientific paper

Lightcurves obtained for 1917 Cuyo at solar phase angles near 54 degrees have an amplitude delta m = 0.44 mag. However, convex-profile inversion of the lightcurves yields an estimate of the asteroid's mean cross section (C, a 2-D average of the 3-D shape) that is only slightly noncircular, with an elongation approximately 1.15. The estimate of C undoubtedly contains systematic errors, the most severe of which could arise from non-equatorial viewing/illumination geometry. However, Cuyo's radar echo shows very little variation in bandwidth vs. rotation phase, supporting the hypothesis that this asteroid's elongation is rather modest.

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