Morais, M.H.M.; F. Namouni. "Asteroids in retrograde resonance with Jupiter and Saturn". Monthly Notices of the Royal Astronomical Society Letters (in press). arXiv:1308.0216.
Conferencia: Estimations of masses of the largest asteroids and the main asteroid belt from ranging to planets, Mars orbiters and landers, E. V. Pitjeva; Conferencia editada no libro: 35th COSPAR Scientific Assembly. Held 18–25 xullo 2004, en Paris, Franciae; pax. 2014, (2004); bibcode= 2004cosp.meet.2014P
Distancia dende o centro da Terra ó centro do obxecto. Vexa o NASA/JPL Solar System Dynamics Glossary: Geocentric. A Terra ten un raio de aproximadamente 6.400 km.