Lowell Observatory Near-Earth-Object Search - LONEOS Discovery and Performance Statistics

LONEOS Discovery and Performance Statistics

The table below lists the number of discoveries made by LONEOS each year of operation. Asteroids thought to be larger than one kilometer in diameter were used as benchmarks in assessing survey completeness. Hence, some table elements have two numbers separated by a slash. The second number represents the number of discoveries larger than one kilometer. The column labeled "Asteroid Observations" is the number of observations sent to the MPC. Each asteroid was typically observed four times (once per frame) each night.

Year Asteroid Observations NEAs PHAs Atens Apollos Amors Comets
1998 122550 7/4 0 0/0 3/2 4/2 1
1999 128220 14/7 5 2/2 6/3 6/2 6
2000 271237 38/10 4 3/0 18/5 17/5 6
2001 626976 42/11 9 4/0 17/4 21/7 7
2002 407064 21/4 3 3/1 9/0 9/3 3
2003 720528 54/10 17 5/1 26/3 23/6 2
2004 716152 39/4 9 5/0 22/4 12/0 4
2005 820609 42/4 8 6/0 15/1 21/3 8
2006 679927 19/1 2 0/0 11/1 8/0 2
2007 630469 12/0 2 2/0 4/0 6/0 3
2008 88953 1/0 0 0/0 1/0 0/0 0
Total 5212685 289/55 59 30/4 131/23 127/28 42

A complete list of LONEOS NEO observations can be found at the NeoDys web site.

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