Tags: Planet.

14163 Johnchapman (1998 TY20) is a main-belt asteroid discovered on October 13 1998 by Spacewatch at Kitt Peak.

apoapsis (km)
4.61784e+11
orbital period (μ)
1.54053e+08
periapsis (km)
3.99197e+11
absolute magnitude
14.3
discovery date
1998-10-13
discoverer
Spacewatch
epoch
May 14 2008
former name
1998 TY20

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