Tags: Planet.

18015 Semenkovich (1999 JD121) is a main-belt asteroid discovered on May 13 1999 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.

apoapsis (km)
3.68258e+11
orbital period (μ)
1.13814e+08
periapsis (km)
3.35374e+11
absolute magnitude
14.7
discovery date
1999-05-13
discoverer
Lincoln Near-Earth Asteroid Research
epoch
May 14 2008
former name
1999 JD121

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