Statistics
Scientific paper
Oct 2000
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000icar..147..477p&link_type=abstract
Icarus, Volume 147, Issue 2, pp. 477-486 (2000).
Statistics
12
Scientific paper
An analysis of our photometric observations of near-Earth asteroids 1999 TY2, 1999 SF10, and 1998 WB2 has revealed their rotation periods to be 7.2807+/-0.0003, 2.4663+/-0.0005, and 18.8+/-0.3 min, respectively. Their rotations are so fast that the bodies cannot be held together by self-gravitation alone, and must therefore be monoliths. Their absolute magnitudes, 23.1+/-0.3, 24.0+/-0.5, and 22.1+/-0.2, respectively, indicate that they are small bodies with mean diameters in the range 60-120 m. The current statistics of asteroid spin rates vs size suggest that the range where monoliths start to dominate among asteroids is below a diameter of about 200 m, corresponding to H~22, as suggested by P. Pravec and A. W. Harris (2000, Icarus, in press).
Hergenrother Carl
Kusnirak Peter
Pravec Petr
Sarounova Lenka
Whiteley Rob
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