Shape Determination of the Asteroid (6053) 1993 BW3

Details Shape Determination of the Asteroid (6053) 1993 BW3 Shape Determination of the Asteroid (6053) 1993 BW3

Sep 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002icar..159..192d&link_type=abstract

Icarus, Volume 159, Issue 1, p. 192-196.

Computer Science

3

Scientific paper

The optical lightcurves of the Amor asteroid (6053) 1993 BW3 reported by Pravec et al. (1997, Icarus127, 441-451), together with the triaxial ellipsoid model (a/b=1.08, b/c~1.5), pole direction (175°, -9°), and sidereal rotation period 0.107 225 8 day, are used for lightcurve inversion. A trial-and-error method is used for determining the shape that gives the best fit between observed and synthetic lightcurves. The original pole direction derived by Pravec et al. (1997, Icarus127, 441-451) is moderately changed to the value (180°, 6°). The synthetic lightcurves generated by the model provide a good fit to the observed lightcurves with a rms residual of 0.033 mag. Hapke's parameters cannot be determined unambiguously. The adopted model with parameters w=0.30, g=-0.26, h=0.02, B0=1.32, and θ=30° gives a mean shift between observed and computed lightcurves of 0.053 mag.

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