Asteroid Lightcurve Analysis at CS3-Palmer Divide Station: 2013 September-December

Lightcurves for 31 main-belt asteroids were obtained at the Center for Solar System Studies-Palmer Divide Station (CS3-PDS) from 2013 September through December. The majority of the objects were members of the Hungaria group/family. In many cases, the observations were follow-up to previous apparitions to check for the possibility of undiscovered satellites or to provide additional data for spin axis and shape modeling. Three Hungaria asteroids, 4440 Tchantches, 6602 Gilclark, and 7173 Sepkoski, are possible binary candidates while (69406) 1995 SX48 is a probable binary candidate. The inner main-belt asteroid (119744) 2001 YN42 may be a rare example of a binary with a relatively short period superimposed on a large amplitude secondary period on the order of hundreds of hours.