(57027) 2000 UB59

--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, outer orbital data, primary (osculating elements) [JPL] : semimajor axis a: 3.949687423 AU orbital period P: 7.84968615 yr (= 2867.097866 d) eccentricity e: 0.133796384 perihelion distance q: 3.42123353 AU aphelion distance Q: 4.478141318 AU inclination i: 3.3555083° argument of perihelion ω: 150.610432° ascending node Ω: 285.495074° mean anomaly M: 193.56251° perihelion passage TP: 2025 Feb 15.53492 Epoch: 2021 Jul 01 data arc: 1999-2021 (867 obs.) Earth MOID: 2.43695 AU Jupiter Tisserand invariant TJ: 3.041 orbital data, secondary: semimajor axis as: 25 km [*E] separation/primary radius as/rp: 4.7 [*E] separation/Hill radius as/rH: 0.0087 [*E] orbital period Ps: 1.075 d [S20a] eccentricity es: ? normalized ang. mom. αL: ?

other data, system (combined): absolute mag. H: 13.53 [MPC] slope parameter G: (0.15) [*A] effective diameter dE: 11.12 ± 0.26 km [G12c] geometric albedo: 0.068 ± 0.014 [G12c] color index U-B: ? color index B-V: ? taxonomic type: ? mass m: ? density ρ: (1.6 g/cm3) [*A] Hill radius rH: 2900 km [*E] other data, primary: diameter dp: 10.7 ± 0.25 km [*E] rotation period RPp: 4.8 h [S20a] amplitude in mag., rotational ΔM: 0.15 [S20a] pole direction Β, λ: ? , ? other data, secondary: diameter ds: >3.2 km [*E] diameter ratio ds/dp: >0.3 [*E] component mag. difference ΔM: <2.61 [*E] rotation period RPs: 25.798 h [S20a]