Tags: Planet.

21391 Rotanner (1998 FY31) is a main-belt asteroid discovered on March 20 1998 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.

apoapsis (km)
3.55052e+11
orbital period (μ)
1.05284e+08
periapsis (km)
3.12966e+11
absolute magnitude
15.8
discovery date
1998-03-20
discoverer
Lincoln Near-Earth Asteroid Research
epoch
May 14 2008
former name
1998 FY31

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