(671468) 2014 LQ28

--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 orbital data, primary (osculating elements) [JPL] : semimajor axis a: 44.04605 AU orbital period P: 292.3269 yr (= 106772.4 d) eccentricity e: 0.104067 perihelion distance q: 39.46233 AU aphelion distance Q: 48.6298 AU inclination i: 1.295486° argument of perihelion ω: 156.8036° ascending node Ω: 223.5172° mean anomaly M: 347.2495° perihelion passage TP: 2032 Dec 15.7 Epoch: 2022 Aug 09 data arc: 2010-2022 (258 obs.) Earth MOID: 38.4652 AU Jupiter Tisserand invariant TJ: 5.904 Neptune Tisserand invariant TN: 3.090 [*D] orbital data, secondary: semimajor axis as: 32900 ± 5300 km [B23i] separation/primary radius as/rp: 390 [*E] separation/Hill radius as/rH: 0.072 [*E] orbital period Ps: 1470 ± 310 d [B23i] eccentricity es: 0.64 ± 0.15 [B23i] inclination is: 43° ± 2° [B23i] ascending node Ωs: 5° ± 4° [B23i] argument of pericenter ωs: 256° ± 5° [B23i] mean anomaly M: 268° ± 19° [B23i] Epoch: 2016 Aug 15.258 normalized ang. mom. αL: ?

other data, system (combined): absolute mag. H: 5.88 [MPC] slope parameter G: (0.15) [*A] effective diameter dE: 220 km [*E] geometric albedo: (0.16 ) [*A] color index U-B: ? color index B-V: ? taxonomic type: ? mass m: 1.4x1018 ± 6x1017 kg [B23i] density ρ: (0.5 g/cm3) [*A] Hill radius rH: 460000 km [*E] other data, primary: diameter dp: 169 km [*E] rotation period RPp: ? amplitude in mag., rotational ΔM: ? pole direction Β, λ: ? , ? other data, secondary: diameter ds: 141 km [*E] diameter ratio ds/dp: 0.83 [*D] component mag. difference ΔM: 0.4 [S18a] rotation period RPs: ?