2014 WZ120

--Orbital and physical data--

(See this page for definitions of quantities; source codes in brackets, see this link for full references; *A, *D, and *E indicate assumed, derived, and estimated values, respectively.)

dynamical type, primary: NEA, Apollo (PHA) orbital data, primary (osculating elements) [JPL] : semimajor axis a: 2.2136843 AU orbital period P: 3.2936203 yr (= 1203.0175 d) eccentricity e: 0.63862784 perihelion distance q: 0.79996387 AU aphelion distance Q: 3.6274047 AU inclination i: 20.926891° argument of perihelion ω: 245.143724° ascending node Ω: 244.924489° mean anomaly M: 349.566456° perihelion passage TP: 2015 Jan 12.865932 Epoch: 2014 Dec 09 data arc: 2014 Nov-2014 Dec (329 obs.) Earth MOID: 0.0292124 AU Jupiter Tisserand invariant TJ: 3.288 orbital data, secondary: semimajor axis as: 0.5 km [*E] separation/primary radius as/rp: 3.3 [*E] separation/Hill radius as/rH: 0.026 [*E] orbital period Ps: 0.56938 ± 0.00025 d [W15e] eccentricity es: ? normalized ang. mom. αL: ?

other data, system (combined): absolute mag. H: 20.4 [MPC] 20.44 ± 0.36 [JPL] slope parameter G: (0.15) [*A] effective diameter dE: 0.3 km [R##] geometric albedo: 0.12 [*D] color index U-B: ? color index B-V: ? taxonomic type: ? mass m: ? density ρ: (1.6 g/cm3) [*A] Hill radius rH: 19 km [*E] other data, primary: diameter dp: 0.3 km [*E] rotation period RPp: 3.361 ± 0.002 h [W15e] amplitude in mag., rotational ΔM: 0.05 [W15e] pole direction Β, λ: ? , ? other data, secondary: diameter ds: 0.1 km [*E] diameter ratio ds/dp: >0.32 ± 0.02 [W15e] component mag. difference ΔM: 2.5 [*D] rotation period RPs: ?