(612619) 2003 SN317

--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 cold orbital data, primary (osculating elements) [JPL] : semimajor axis a: 42.826 AU orbital period P: 280.26 yr (= 102367 d) eccentricity e: 0.04309 perihelion distance q: 40.9805 AU aphelion distance Q: 44.671 AU inclination i: 1.49192° argument of perihelion ω: 97.68° ascending node Ω: 215.468° mean anomaly M: 69.64° perihelion passage TP: 1970 Jan 10 Epoch: 2024 Mar 31 data arc: 2000-2008 (36 obs.) Earth MOID: 39.9666 AU Jupiter Tisserand invariant TJ: 5.852 Neptune Tisserand invariant TN: 3.086 [*D] orbital data, secondary: semimajor axis as: 1000 km (separation) [P24b] separation/primary radius as/rp: 11 [*E] separation/Hill radius as/rH: 0.0019 [*E] orbital period Ps: 4.5 d [*E] eccentricity es: ? normalized ang. mom. αL: ?

other data, system (combined): absolute mag. H: 6.54 [MPC] slope parameter G: (0.15) [*A] effective diameter dE: 216 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: 530000 km [*E] other data, primary: diameter dp: 177 km [*E] rotation period RPp: ? amplitude in mag., rotational ΔM: ? pole direction Β, λ: ? , ? other data, secondary: diameter ds: 125 km [*E] diameter ratio ds/dp: 0.71 [P24b] component mag. difference ΔM: 0.7 [*D] rotation period RPs: ?