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Aten asteroid[′ä‚ten ′as·tə‚rȯid]
An asteroid whose period is less than that of the earth.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive
According to CNEOS, Aten asteroids
often intersect the orbital path of Earth as they travel around the Sun.
Dozens of Apollo and Aten asteroids
orbit the Sun, and 1986 TO travels in a rather normal elliptic orbit.
2010 PK9 is categorized as an (https://www.ibtimes.com/nasa-asteroid-tracker-massive-1870ft-hazardous-neo-could-hit-earth-year-2807275) Aten asteroid