Deletion of 1490 Limpopo

Comment: I only see three light-curve studies http://jsara.org/JSARA-V07/ms0707-Violante+Leake.pdf http://adsabs.harvard.edu/abs/2006MPBu...33...78S http://adsabs.harvard.edu/abs/2011AAS...21715611S, each of small groups of asteroids. And the physical modeling study is of many asteroids, with this as only one entry in a large table http://yly-mac.gps.caltech.edu/A_DPS/dps%202011%20/a_dps%202011%20program%20+%20abstracts/pdf/EPSC-DPS2011-396.pdf. Still, I think it's enough attention to this specific object to pass 
Stance: keep
Cited policy: Wikipedia:Notability (WP:NASTRO)