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Goldstone radar observations of near-Earth asteroid 2007 TU24 last
night were successful.
The observations reveal an object roughly 250 meters in diameter, with
an interesting shape, and strongly suggest that rotates slowly.
The radar astrometry we obtained reduced the asteroid's three-sigma
range uncertainty at 00:00:00 UTC on Jan. 24 from about 2/3 of an
Earth radius to ~30 meters. Consequently, we have cancelled our
request for optical astrometry to support the rest of the radar
Dr. Lance A. M. Benner
Jet Propulsion Laboratory