Tags: Planet.

21860 Joannaguy (1999 TX180) is a main-belt asteroid discovered on October 10 1999 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.

apoapsis (km)
4.14734e+11
orbital period (μ)
1.3887e+08
periapsis (km)
3.88706e+11
absolute magnitude
14.3
discovery date
1999-10-10
discoverer
Lincoln Near-Earth Asteroid Research
epoch
May 14 2008
former name
1999 TX180

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