2005 LW3

--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: NEA, Apollo (PHA) orbital data, primary (osculating elements) [JPL] : semimajor axis a: 1.4386823182 AU orbital period P: 1.725661307 yr (= 630.2977923 d) eccentricity e: 0.463841167 perihelion distance q: 0.771362233 AU aphelion distance Q: 2.106002403 AU inclination i: 6.020943° argument of perihelion ω: 288.6627768° ascending node Ω: 59.5875433° mean anomaly M: 81.3845482° perihelion passage TP: 2022 Oct 05.5097192 Epoch: 2023 Feb 25 data arc: 2005-2022 (78 obs.) Earth MOID: 0.00139695 AU Jupiter Tisserand invariant TJ: 4.543 orbital data, secondary: semimajor axis as: 4 km (separation) [N22b] separation/primary radius as/rp: 20 [*D] separation/Hill radius as/rH: 0.16 [*D] orbital period Ps: 9.5 d [*D] eccentricity es: ? normalized ang. mom. αL: ?

other data, system (combined): absolute mag. H: 21.89 [MPC] slope parameter G: (0.15) [*A] effective diameter dE: 0.43 km [*D] geometric albedo: 0.017 [*D] color index U-B: ? color index B-V: ? taxonomic type: ? mass m: ? density ρ: (1.6 g/cm3) [*A] Hill radius rH: 24 km [*E] other data, primary: diameter dp: 0.4 km [N22b] rotation period RPp: 3.6 h [N22b] amplitude in mag., rotational ΔM: ? pole direction Β, λ: ? , ? other data, secondary: diameter ds: 0.15 km [N22b] dimensions : 0.2 x 0.1 x ?km [N22b] axial ratios a/b, b/c: 2;? [] diameter ratio ds/dp: 0.38 [*D] component mag. difference ΔM: 2.1 [*D] rotation period RPs: ?