type ▁by ▁the ▁survey ▁conducted ▁by ▁Pan - ST AR RS , ▁while ▁in ▁the ▁Th olen ▁classification ▁the ▁body ' s ▁spectral ▁type ▁is ▁ambigu ous , ▁closest ▁to ▁a ▁D - type ▁and ▁somewhat ▁similar ▁to ▁a ▁T - type ▁astero id , ▁with ▁a ▁spectrum ▁flag ged ▁as ▁unusual ▁and ▁moder ately ▁no isy ▁( DT U : ). ▁ ▁Rot ation ▁period ▁▁ ▁In ▁August ▁ 1 9 9 5 , ▁and ▁in ▁March ▁ 2 0 0 2 , ▁two ▁rot ational ▁light cur ves ▁of ▁Ne opt ole mus ▁were ▁obtained ▁from ▁phot ometric ▁observations ▁by ▁Italian ▁astronom er ▁Stef ano ▁M ott ola ▁using ▁the ▁Bo ch um ▁ 0 . 6 1 - met re ▁T eles cope ▁at ▁La ▁S illa ▁Observ atory , ▁Chile , ▁and ▁the ▁ 1 . 5 2 - meter ▁Lo iano ▁T eles cope ▁at ▁the ▁Observ atory ▁of ▁Bolog na , ▁Italy , ▁respectively . ▁Light cur ve ▁analysis ▁gave ▁a ▁well - defined ▁rotation ▁period ▁of ▁ 8 . 1 8 0 ▁hours ▁and ▁a ▁bright ness ▁variation ▁of ▁ 0 . 2 0 ▁and ▁ 0 . 3 2 ▁magnitude , ▁respectively ▁( ). ▁ ▁Follow - up ▁observation ▁by ▁Robert ▁Steph ens ▁at ▁the ▁Center ▁for ▁Sol ar ▁System ▁Studies ▁in ▁ 2 0 1 5 , ▁and ▁ 2 0 1 6 , ▁gave ▁a ▁conc urr ing ▁period ▁of ▁ 8 . 1 8 ▁and ▁ 8 . 1 9 9 ▁hours