(307616) 2003 QW90

--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 hot orbital data, primary (osculating elements) [JPL] : semimajor axis a: 43.90251 AU orbital period P: 290.899 yr (= 106250.8 d) eccentricity e: 0.0794248 perihelion distance q: 40.41556 AU aphelion distance Q: 47.38946 AU inclination i: 10.360537° argument of perihelion ω: 85.8047° ascending node Ω: 17.775913° mean anomaly M: 292.3143° perihelion passage TP: 2081 Feb 16.8 Epoch: 2026 Jun 09 data arc: 2002-2025 (578 obs.) Earth MOID: 39.4484 AU Jupiter Tisserand invariant TJ: 5.815 Neptune Tisserand invariant TN: 3.055 [*D] orbital data, secondary: semimajor axis as: 1830 ± 30 km [P26g] separation/primary radius as/rp: 12 [*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: 5.12 [MPC] 5.00 ± 0.30 [M20d] slope parameter G: (0.15) [*A] effective diameter dE: 401 ± 63/48 km [M20d] geometric albedo: 0.084 ± 0.026/0.022 [M20d] color index U-B: ? color index B-V: ? taxonomic type: ? mass m: ? density ρ: (1 g/cm3) [*A] Hill radius rH: 960000 km [*E] other data, primary: diameter dp: 304 km [*D] rotation period RPp: ? amplitude in mag., rotational ΔM: ? pole direction Β, λ: ? , ? other data, secondary: diameter ds: 262 km [*D] diameter ratio ds/dp: 0.86 ± 0.06 [*D] component mag. difference ΔM: 0.32 ± 0.14 [P25g] rotation period RPs: ?