2004 SC60

--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: 44.1574 AU orbital period P: 293.436 yr (= 107177.4 d) eccentricity e: 0.272425 perihelion distance q: 32.1278 AU aphelion distance Q: 56.1869 AU inclination i: 0.984063° argument of perihelion ω: 48.2353° ascending node Ω: 358.92879° mean anomaly M: 352.7257° perihelion passage TP: 2030 Mar 05.66 Epoch: 2024 Mar 31 data arc: 2004-2023 (172 obs.) Earth MOID: 31.1381 AU Jupiter Tisserand invariant TJ: 5.723 Neptune Tisserand invariant TN: 3.013 [*D] orbital data, secondary: semimajor axis as: 3700 km (separation) [T24b] separation/primary radius as/rp: 60 [*E] separation/Hill radius as/rH: 0.012 [*E] orbital period Ps: 51 d [*E] eccentricity es: ? normalized ang. mom. αL: ?

other data, system (combined): absolute mag. H: 7.2 [MPC] slope parameter G: (0.15) [*A] effective diameter dE: 160 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: 310000 km [*E] other data, primary: diameter dp: 123 km [*E] rotation period RPp: ? amplitude in mag., rotational ΔM: ? pole direction Β, λ: ? , ? other data, secondary: diameter ds: 102 km [*E] diameter ratio ds/dp: 0.83 ± 0.08 [*D] component mag. difference ΔM: 0.4 ± 0.2 [T24b] rotation period RPs: ?