Tags: Asteroid.
19741 Callahan is a main belt asteroid with a perihelion of 1.8584973 AU. It has an eccentricity of 0.1308822 and an orbital period of 1230.5673756 days (3.37 years).Callahan has an orbital velocity average of 19.86850048 km/s and a tilt of 8.04882°.This asteroid was discovered on January 5 2000 by LINEAR. This asteroid is named after Diane Callahan who mentored a finalist in the 2003 Discovery Channel Youth Science Challenge a middle school science competition.