2002 VD131

--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: TNO, Cubewano orbital data, primary (osculating elements) [JPL] : semimajor axis a: 44.95 AU orbital period P: 301.37 yr (= 110075.7 d) eccentricity e: 0.06554 perihelion distance q: 42.004 AU aphelion distance Q: 47.896 AU inclination i: 0.85201° argument of perihelion ω: 238.54° ascending node Ω: 84.591° mean anomaly M: 71.14° perihelion passage TP: 1959 Oct 06.0 Epoch: 2019 Apr 27 data arc: 2002-2013 (16 obs.) Earth MOID: 40.9908 AU Jupiter Tisserand invariant TJ: 5.981 orbital data, secondary: semimajor axis as: 14900 ± 600 km (separation) [F17a] separation/primary radius as/rp: 190 [*E] separation/Hill radius as/rH: 0.023 [*E] orbital period Ps: 220 d [*E] eccentricity es: ? normalized ang. mom. αL: ?

other data, system (combined): absolute mag. H: 6.5 [MPC] 6.9 ± 0.5 [G19c] slope parameter G: (0.15) [*A] effective diameter dE: 221 km [*E] geometric albedo: (0.09 ) [*A] color index U-B: ? color index B-V: ? taxonomic type: ? mass m: ? density ρ: (1 g/cm3) [*A] Hill radius rH: 640000 km [*E] other data, primary: diameter dp: 214 km [*E] rotation period RPp: ? amplitude in mag., rotational ΔM: ? pole direction Β, λ: ? , ? other data, secondary: diameter ds: 54 km [*E] diameter ratio ds/dp: 0.25 ± 0.02 [F17a] component mag. difference ΔM: 3.0 [*D] rotation period RPs: ?