Lightcurve results for 15520 1999 XK98. Derived period 8.7904 ± 0.0004 hours. Amplitude of 0.73 ± 0.05 magnitude.
15520 1999 XK98 is a main-belt asteroid with an estimated diameter of about 15 km. It was discovered on December 7,1999 by LINEAR at Socorro. The semi-major axis is 2.66 AU, the eccentricity is 0.128 and the inclination is 11.69 degrees.
This asteroid was observed on 4 nights during July and August 2015. A period of 8.79 hours was derived.