Near-Earth Asteroid List

Compiled by: Carl Hergenrother December 14, 2012
Edited by: Dolores Hill May 2, 2013

You can download a more detailed Target Asteroids! list here.

• Asteroid designations may contain one to three labels based on the number of oppositions observed:
• Provisional designations include the year of discovery, a letter signifying the half-month period, and a letter in order of discovery during that period (example: 2008 WN2).
• Permanent designation is a number assigned after the object has been observed for at least four oppositions (example: (163249) 2002 GT).
• Name may be submitted by the discoverer up to 10 years after a number has been assigned or he/she may give permission to someone else to submit a name to the IAU Committee for Small-Body Nomenclature (example: (3361) Orpheus).
• Family Definitions: Apollo semi-major axis > 1.0 AU perihelion distance < 1.017 AU; Aten semi-major axis> 1.0 AU aphelion distance > 0.983 AU; Amor semi-major axis > 1.017 AU and < 1.3 AU.
• PHA = Potentially Hazardous Asteroid