Tags: Planet.

18876 Sooner (1999 XM) is a main-belt asteroid discovered on December 2 1999 by J. M. Roe at Oaxaca.

apoapsis (km)
4.48509e+11
orbital period (μ)
1.18166e+08
periapsis (km)
2.72947e+11
absolute magnitude
14.1
discovery date
1999-12-02
discoverer
James M. Roe
epoch
May 14 2008
former name
1999 XM

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