(554099) 2012 KU50

--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 orbital data, primary (osculating elements) [JPL] : semimajor axis a: 40.9456 AU orbital period P: 262.0107 yr (= 95699.4 d) eccentricity e: 0.245351 perihelion distance q: 30.89954 AU aphelion distance Q: 50.9917 AU inclination i: 18.855771° argument of perihelion ω: 127.2045° ascending node Ω: 66.779716° mean anomaly M: 24.896° perihelion passage TP: 2003 Dec 08.86 Epoch: 2022 Jan 21 data arc: 2002-2021 (235 obs.) Earth MOID: 29.9337 AU Jupiter Tisserand invariant TJ: 5.274 Neptune Tisserand invariant TN: 2.87546717184412 [*D] orbital data, secondary: semimajor axis as: 30000 km (separation) [C21a] separation/primary radius as/rp: 250 [*E] separation/Hill radius as/rH: 0.047 [*E] orbital period Ps: 560 d [*E] eccentricity es: ? normalized ang. mom. αL: ?

other data, system (combined): absolute mag. H: 6.37 [MPC] slope parameter G: (0.15) [*A] effective diameter dE: 236 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: 236 km [*E] rotation period RPp: ? amplitude in mag., rotational ΔM: ? pole direction Β, λ: ? , ? other data, secondary: diameter ds: ? diameter ratio ds/dp: ? component mag. difference ΔM: ? rotation period RPs: ?