▁Inf ra red ▁Survey ▁Explorer , ▁the ▁astero id ▁measures ▁ 3 . 0 ▁kilom eters ▁in ▁diameter ▁and ▁its ▁surface ▁has ▁an ▁al bed o ▁of ▁ 0 . 1 6 , ▁while ▁the ▁Coll abor ative ▁Ast ero id ▁Light cur ve ▁Link ▁assumes ▁a ▁standard ▁al bed o ▁for ▁st ony ▁astero ids ▁of ▁ 0 . 2 0 ▁and ▁calcul ates ▁a ▁diameter ▁of ▁ 2 . 7 ▁kilom eters ▁with ▁an ▁absolute ▁magnitude ▁of ▁ 1 5 . 2 1 . ▁ ▁N aming ▁▁ ▁This ▁minor ▁planet ▁is ▁named ▁" B elt rov ata ", ▁which ▁is ▁the ▁name ▁by ▁whom ▁the ▁Swiss ▁author ▁Gott fried ▁K eller ▁from ▁Zürich ▁called ▁his ▁friend ▁Betty ▁T ender ing . ▁She ▁served ▁as ▁role ▁model ▁for ▁the ▁character ▁of ▁" D ort chen ▁Schön fund " ▁in ▁K eller ' s ▁novel ▁Green ▁Henry . ▁The ▁official ▁naming ▁c itation ▁was ▁published ▁by ▁the ▁Minor ▁Planet ▁Center ▁on ▁ 1 ▁August ▁ 1 9 8 1 ▁( ). ▁ ▁References ▁ ▁External ▁links ▁▁ ▁Ast ero id ▁Light cur ve ▁Database ▁( LC DB ), ▁query ▁form ▁( info ) ▁ ▁Dictionary ▁of ▁Minor ▁Planet ▁Names , ▁Google ▁books ▁ ▁Ast ero ids ▁and ▁com ets ▁rotation ▁curves , ▁C d R ▁– ▁Observ atoire ▁de ▁Gen ève , ▁Ra oul ▁Be hr end ▁ ▁Disc overy ▁Circ um st ances : ▁Number ed ▁Minor ▁Plan ets ▁( 1 )- ( 5 0 0 0 ) ▁– ▁Minor ▁Planet