The dataset provided by NASA contains J2000 heliocentric ecliptic orbital elements for 170 NECs (Near-Earth Comets) sorted by object number/name.By Ashok
As they orbit the Sun, Near-Earth Objects occasionally approach close to Earth. CNEOS calculates the motion of all NEOs forwards to 2200 A.D. and backwards to 1900 A.D., and determines the times and distances of the Earth close approaches. The results are tabulated here. You can customize the contents and organization of the table via the Table Settings pulldown lists.