(64338) 2001 UU64

--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: main belt asteroid orbital data, primary (osculating elements) [JPL] : semimajor axis a: 2.2039194754 AU orbital period P: 3.2719132935 yr (= 1195.06633046 d) eccentricity e: 0.11867912413 perihelion distance q: 1.9423602424 AU aphelion distance Q: 2.4654787084 AU inclination i: 4.503545883° argument of perihelion ω: 104.95694262° ascending node Ω: 287.36517682° mean anomaly M: 14.64913086° perihelion passage TP: 2024 Aug 29.3703248 Epoch: 2024 Oct 17 data arc: 1991-2024 (2644 obs.) Earth MOID: 0.953567 AU Jupiter Tisserand invariant TJ: 3.649 orbital data, secondary: semimajor axis as: 4.1 km [*E] separation/primary radius as/rp: 4.0 [*E] separation/Hill radius as/rH: 0.013 [*E] orbital period Ps: 0.8179 ± 0.0004 d [C24c] eccentricity es: ? normalized ang. mom. αL: ?

other data, system (combined): absolute mag. H: 15.37 [MPC] slope parameter G: (0.15) [*A] effective diameter dE: 2.29 km [*E] geometric albedo: (0.24 ) [*A] color index U-B: ? color index B-V: ? taxonomic type: mass m: ? density ρ: (1.6 g/cm3) [*A] Hill radius rH: 320 km [*E] other data, primary: diameter dp: 2.09 km [*E] axial ratios a/b, b/c: 1.1, ? [*E] rotation period RPp: 3.818 ± 0.001 h [C24c] amplitude in mag., rotational ΔM: 0.1 [C24c] amplitude in mag., mutual events ΔM: 0.225 ±0.025 [C24c] pole direction Β, λ: ? , ? other data, secondary: diameter ds: >0.94 km [*E] diameter ratio ds/dp: >0.45 [C24c] component mag. difference ΔM: <1.73 [*D] rotation period RPs: ?