▁binary ▁astero id , ▁class ified ▁as ▁a ▁near - E arth ▁astero id ▁and ▁potentially ▁ha z ard ous ▁object ▁of ▁the ▁Apol lo ▁group . ▁It ▁was ▁discovered ▁on ▁ 2 7 ▁January ▁ 2 0 2 0 , ▁by ▁the ▁Ast ero id ▁Terr est rial - imp act ▁Last ▁Alert ▁System ▁survey ▁at ▁the ▁Ma una ▁Lo a ▁Observ atory ▁in ▁Hawai i . ▁The ▁astero id ▁was ▁discovered ▁during ▁its ▁close ▁approach ▁to ▁Earth ▁from ▁a ▁nom inal ▁distance ▁of ▁ 1 1 . 3 5 ▁lun ar ▁distances , ▁or ▁approximately ▁. ▁rad ar ▁observations ▁of ▁the ▁astero id ▁were ▁carried ▁out , ▁reve aling ▁a ▁small ▁natural ▁satellite ▁orbit ing ▁ ▁from ▁the ▁primary ▁body . ▁The ▁discovery ▁of ▁the ▁satellite ▁was ▁announced ▁by ▁the ▁A reci bo ▁Observ atory ▁on ▁ 1 0 ▁February ▁ 2 0 2 0 . ▁ ▁Disc overy ▁▁ ▁was ▁discovered ▁on ▁ 2 7 ▁January ▁ 2 0 2 0 , ▁by ▁the ▁Ast ero id ▁Terr est rial - imp act ▁Last ▁Alert ▁System ▁( AT L AS ) ▁survey ▁at ▁the ▁Ma una ▁Lo a ▁Observ atory ▁in ▁Hawai i . ▁The ▁A TL AS ▁survey ▁was ▁designed ▁for ▁detect ing ▁near - E arth ▁astero ids ▁on ▁approach ▁to ▁Earth , ▁particularly ▁those ▁that ▁may ▁be ▁considered ▁potentially ▁ha z ard ous ▁under ▁circumstances ▁where ▁they ▁can ▁approach ▁Earth ▁from ▁close ▁distances . ▁ ▁was ▁identified ▁by ▁a ▁team ▁of ▁astronom ers ▁consisting ▁of ▁Larry ▁Den