It orbits the Sun in the inner main-belt at a distance of 1.9–2.5 AU once every 3 years and 3 months (1,188 days).
The discovered asteroid moon orbits its primary once every 18.2 hours, at a distance of 16 kilometers.
[7][8][11] The Collaborative Asteroid Lightcurve Link agrees with the revised WISE-results by Pravec, adopting an albedo of 0.225 and a diameter of 9.15 kilometers with an absolute magnitude of 12.43.
This minor planet was named for the Belgian town, municipality and provincial capital, Arlon.
In ancient times, Arlon was known as Orolaunum by the Romans and served as a station on the Antoninian way linking the cities Trier with Reims.