2016 PO296

--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: 58.275 AU orbital period P: 444.87 yr (= 162489 d) eccentricity e: 0.30119 perihelion distance q: 40.723 AU aphelion distance Q: 75.827 AU inclination i: 14.3542° argument of perihelion ω: 154.28° ascending node Ω: 334.2514° mean anomaly M: 259.72° perihelion passage TP: 2148 Sep 19 Epoch: 2024 Oct 17 data arc: 2005-2019 (29 obs.) Earth MOID: 39.7452 AU Jupiter Tisserand invariant TJ: 6.272 Neptune Tisserand invariant TN: 3.0880822494363 [*D] orbital data, secondary: semimajor axis as: 19000 ± 5000 km (separation) [D24c] orbital period Ps: 320 d [*E] eccentricity es: ? normalized ang. mom. αL: ?

other data, system (combined): absolute mag. H: 5.89 [MPC] 5.89 ± 0.22 [JPL] slope parameter G: (0.15) [*A] effective diameter dE: 245 km [*E] geometric albedo: (0.13 ) [*A] color index U-B: ? color index B-V: ? taxonomic type: ? mass m: ? density ρ: (1 g/cm3) [*A] Hill radius rH: 590000 km [*E] other data, primary: diameter dp: 181 km [*E] rotation period RPp: ? amplitude in mag., rotational ΔM: ? pole direction Β, λ: ? , ? other data, secondary: diameter ds: 165 km [*E] diameter ratio ds/dp: 0.91 [*D] component mag. difference ΔM: 0.2 [D24c] rotation period RPs: ?