Asteroid 2010 AA15 is in a similar but different orbit than main-belt comet P/2010 A2. Using the best-fit short-arc orbital data it appears as if the closest that comet P/2010 A2 came to asteroid 2010 AA15 is around 0.0155 AU (2.3 million kilometers) on November 22 2009.2010 AA15 was discovered on January 7 2010.
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