(175189) 2005 EC224

--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, Amor orbital data, primary (osculating elements) [JPL] : semimajor axis a: 2.0578949933 AU orbital period P: 2.952181253 yr (= 1078.2842028 d) eccentricity e: 0.385785604 perihelion distance q: 1.26398873 AU aphelion distance Q: 2.8518012564 AU inclination i: 2.6238868° argument of perihelion ω: 79.453941° ascending node Ω: 169.123378° mean anomaly M: 11.4189732° perihelion passage TP: 2026 May 05.797504 Epoch: 2026 Jun 09 data arc: 2002-2026 (1249 obs.) Earth MOID: 0.255414 AU Jupiter Tisserand invariant TJ: 3.688 orbital data, secondary: semimajor axis as: 1.1 km [*E] separation/primary radius as/rp: 5.2 [*E] separation/Hill radius as/rH: 0.024 [*E] orbital period Ps: 1.1021 ± 0.0012 d [P26n] eccentricity es: ? normalized ang. mom. αL: ?

other data, system (combined): absolute mag. H: 18.29 [MPC] 18.44 ± 0.13 [P26n] slope parameter G: (0.24) [*A] effective diameter dE: 0.485 km [T16a] geometric albedo: 0.259 [T16a] color index U-B: ? color index B-V: ? color index V-R: 0.422 ± 0.011 [P26n] taxonomic type: mass m: ? density ρ: (2 g/cm3) [*A] Hill radius rH: 48 km [*E] other data, primary: diameter dp: 0.44 km [*D] axial ratios a/b, b/c: 1.1, ? [*E] rotation period RPp: 2.506 ± 0.003 h [P26n] amplitude in mag., rotational ΔM: 0.08 [P26n] amplitude in mag., mutual events ΔM: 0.29 ±0.09 [P26n] pole direction Β, λ: ? , ? other data, secondary: diameter ds: 0.20 km [*D] diameter ratio ds/dp: >0.45 [P26n] component mag. difference ΔM: 1.73 [*D] rotation period RPs: ?