ifies ▁the ▁object ▁as ▁an ▁astero id ▁from ▁the ▁inner ▁region ▁of ▁the ▁astero id ▁bel t . ▁It ▁was ▁first ▁observed ▁from ▁Earth ' s ▁orbit ▁by ▁the ▁W I SE ▁teles cope ▁on ▁ 5 ▁April ▁ 2 0 1 0 ▁and ▁still ▁has ▁a ▁very ▁poor ly ▁determined ▁orbit ; ▁for ▁example , ▁its ▁a ph el ion ▁is ▁still ▁only ▁known ▁rather ▁in ac cur ately ▁to ▁be ▁ 9 . 3 ▁ ± ▁ 4 3 ▁A U . ▁ ▁Description ▁▁▁ ▁was ▁observed ▁for ▁a ▁period ▁of ▁ 1 . 2 ▁days ▁by ▁the ▁NE OW I SE ▁mission ▁of ▁NASA ' s ▁W ide - field ▁Inf ra red ▁Survey ▁Explorer ▁( WI SE ) ▁space ▁teles cope ▁during ▁ 5 – 6 ▁April ▁ 2 0 1 0 . ▁The ▁astero id ▁has ▁not ▁been ▁observed ▁since . ▁By ▁mid ▁November ▁ 2 0 1 0 ▁the ▁uncertainty ▁in ▁the ▁astero ids ▁position ▁had ▁grown ▁to ▁ ± 1 ▁billion ▁km . ▁Based ▁on ▁the ▁exception ally ▁poor ▁orbit ▁determ ination , ▁the ▁object ▁was ▁theoret ically ▁an ▁Earth ▁imp actor ▁because ▁many ▁impact ▁solutions ▁were ▁compatible ▁with ▁the ▁data . ▁ ▁missed ▁several ▁calculated ▁impact ▁dates . ▁The ▁Minor ▁Planet ▁Center ▁orbit ▁solution ▁may ▁be ▁recover able ▁near ▁opposition ▁in ▁March ▁ 2 0 1 8 . ▁ ▁In ▁February ▁ 2 0 1 8 , ▁the ▁NE OW I SE ▁team ▁re anal yz ed ▁their ▁data ▁and ▁found ▁an ▁additional ▁detection ▁from