▁of ▁this ▁astero id ▁during ▁ 2 0 0 5 – 0 6 ▁gave ▁a ▁light ▁curve ▁with ▁a ▁period ▁of ▁ 1 8 . 0 7 5 ▁ ± ▁ 0 . 0 0 5 ▁hours ▁and ▁a ▁bright ness ▁variation ▁of ▁ 0 . 1 4 ▁in ▁magnitude . ▁In ▁ 2 0 0 9 , ▁a ▁phot ometric ▁study ▁from ▁a ▁different ▁view ing ▁angle ▁was ▁performed ▁at ▁the ▁Organ ▁M esa ▁Observ atory ▁in ▁Las ▁Cru ces , ▁New ▁Mexico , ▁yield ing ▁a ▁rotation ▁period ▁of ▁ 9 . 0 3 6 ▁ ± ▁ 0 . 0 0 1 ▁with ▁a ▁bright ness ▁variation ▁of ▁ 0 . 1 4 ▁ ± ▁ 0 . 0 2 ▁magnitude . ▁This ▁is ▁exactly ▁half ▁of ▁the ▁ 2 0 0 5 - 0 6 ▁result . ▁The ▁author ▁of ▁the ▁earlier ▁study ▁used ▁additional ▁data ▁observation ▁that ▁fav ored ▁the ▁ 9 . 0 3 6 ▁hour ▁period . ▁The ▁dis cre p ancy ▁was ▁de emed ▁a ▁consequence ▁of ▁view ing ▁the ▁astero id ▁from ▁different ▁long itudes . ▁ ▁Kal y ps o ▁has ▁been ▁studied ▁by ▁rad ar . ▁ ▁References ▁ ▁External ▁links ▁▁▁▁▁▁ ▁Category : Background ▁astero ids ▁Kal y ps o ▁Kal y ps o ▁Kal y ps o ▁Category : X C - type ▁astero ids ▁( Th olen ) ▁ 1 8 5 8 0 4 0 4 <0x0A> </s> ▁Hash k ova ▁( , ▁also ▁Roman ized ▁as ▁