t ▁astero ids ▁have ▁a ▁semi - major ▁axis ▁less ▁than ▁ 4 . 6 ▁A U . ▁The ▁orb ital ▁incl ination ▁is ▁the ▁easiest ▁part ▁of ▁an ▁orbit ▁to ▁determine ▁and ▁both ▁J PL ▁and ▁the ▁M PC ▁list ▁the ▁incl ination ▁around ▁ 1 6 . 4 ▁degrees . ▁ ▁The ▁ 2 0 1 8 ▁Minor ▁Planet ▁Center ' s ▁( MP C ) ▁orbit ▁solution ▁uses ▁ 1 2 ▁of ▁the ▁ 1 5 ▁observations ▁and ▁also ▁lists ▁the ▁astero id ▁as ▁a ▁main ▁bel t ▁astero id . ▁The ▁new ▁observation ▁found ▁in ▁ 2 0 1 8 ▁resulted ▁in ▁the ▁M PC ▁lif ting ▁peri hel ion ▁( clos est ▁approach ▁to ▁the ▁Sun ) ▁from ▁ 1 . 3 7   AU ▁to ▁ 1 . 9 8   AU . ▁The ▁M PC ▁solution ▁estimates ▁the ▁astero id ▁came ▁to ▁peri hel ion ▁ 1 . 9 8   AU ▁from ▁the ▁Sun ▁around ▁February ▁ 2 0 0 9 . ▁On ▁the ▁discovery ▁date ▁of ▁ 5 ▁April ▁ 2 0 1 0 , ▁the ▁astero id ▁is ▁estimated ▁to ▁have ▁been ▁ 2 . 3   AU ▁from ▁Earth ▁and ▁ 2 . 6   AU ▁from ▁the ▁Sun . ▁, ▁the ▁astero id ▁is ▁estimated ▁to ▁be ▁ ▁from ▁Earth ▁with ▁opposition ▁occurr ing ▁around ▁ 1 9 ▁March ▁ 2 0 1 8 ▁with ▁a ▁solar ▁el ong ation ▁of ▁ 1 6 7 ▁degrees ▁in ▁the ▁const ell ation