[4][5][6][7][8] Its orbit is characterized by low eccentricity (0.054), moderate inclination (18.6°) and a semi-major axis of 1.52 AU.

Its orbit is well determined as it is currently (March 2013) based on 87 observations with a data-arc span of 4,800 days.

[2] 2007 NS2 has an absolute magnitude of 17.8, which gives a characteristic diameter of 870 m.[2] Jean Meeus suspected that (311999) 2007 NS2 was a Mars Trojan, and this was confirmed by Reiner Stoss's analysis of two sets of observations dating from 1998 on the MPC database.

[10] Recent calculations confirm that it is a stable L5 Mars Trojan asteroid with a libration period of 1310 years and an amplitude of 14°.

As in the case of Eureka, calculations in both directions of time (4.5 Gyr into the past and 4.5 Gyr into the future) indicate that (311999) 2007 NS2 may be a primordial object, perhaps a survivor of the planetesimal population that formed in the terrestrial planets region early in the history of the Solar System.