Radar and Optical Observations of Asteroid 1998 KY26

Observations of near-Earth asteroid 1998 KY26 shortly after its discovery reveal a slightly elongated spheroid with a diameter of about 30 meters, a composition analogous to carbonaceous chondritic meteorites, and a rotation period of 10.7 minutes, which is an order of magnitude shorter than that me...

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Veröffentlicht in:Science (American Association for the Advancement of Science) 1999-07, Vol.285 (5427), p.557-559
Hauptverfasser: Ostro, Steven J., Pravec, Petr, Lance A. M. Benner, Hudson, R. Scott, S̆arounová, Lenka, Hicks, Michael D., Rabinowitz, David L., Scotti, James V., Tholen, David J., Wolf, Marek, Jurgens, Raymond F., Thomas, Michael L., Giorgini, Jon D., Chodas, Paul W., Yeomans, Donald K., Rose, Randy, Frye, Robert, Rosema, Keith D., Winkler, Ron, Slade, Martin A.
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Sprache:eng
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Zusammenfassung:Observations of near-Earth asteroid 1998 KY26 shortly after its discovery reveal a slightly elongated spheroid with a diameter of about 30 meters, a composition analogous to carbonaceous chondritic meteorites, and a rotation period of 10.7 minutes, which is an order of magnitude shorter than that measured for any other solar system object. The rotation is too rapid for 1998 KY26 to consist of multiple components bound together just by their mutual gravitational attraction. This monolithic object probably is a fragment derived from cratering or collisional destruction of a much larger asteroid.
ISSN:0036-8075
1095-9203
DOI:10.1126/science.285.5427.557