Testing asteroid pole determination methods with laboratory data

Details Testing asteroid pole determination methods with laboratory data Testing asteroid pole determination methods with laboratory data

Apr 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991a%26a...244..553k&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 244, no. 2, April 1991, p. 553-557.

Astronomy and Astrophysics

Astrophysics

1

Asteroids, Astronomical Photometry, Light Curve, Mathematical Models, Spherical Harmonics, Astronomical Models, Fourier Series, Least Squares Method

Scientific paper

Laboratory models were used to produce simulated asteroid lightcurve data, which in turn were used to test two amplitude-aspect methods for pole determination. The spherical harmonics method of Lumme et al. (1990) seems to predict the pole quite well, even in the presence of albedo variegation and concavities. The standard amplitude-aspect method is more restricted to homogeneous ellipsoids, and was also found less accurate. Thus, the spherical harmonics method appears to be an improvement over the standard method. Both methods suffer from similar ambiguous solutions, usually predicting two pairs of antipodal poles.

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