(6326) Idamiyoshi

--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: 2.68360823428 AU orbital period P: 4.396295498 yr (= 1605.74693063 d) eccentricity e: 0.13022095868 perihelion distance q: 2.3341461973 AU aphelion distance Q: 3.03307027126 AU inclination i: 12.578071817° argument of perihelion ω: 280.84958785° ascending node Ω: 199.53601246° mean anomaly M: 330.74348557° perihelion passage TP: 2025 Sep 12.4959951 Epoch: 2025 May 05 data arc: 1978-2025 (5621 obs.) Earth MOID: 1.38742 AU Jupiter Tisserand invariant TJ: 3.329 orbital data, secondary: semimajor axis as: >7.7 km [M25a] separation/primary radius as/rp: >2.0 [*E] separation/Hill radius as/rH: >0.0055 [*E] orbital period Ps: >0.31 d [*E] eccentricity es: ? normalized ang. mom. αL: ?

other data, system (combined): absolute mag. H: 12.96 [MPC] slope parameter G: (0.15) [*A] effective diameter dE: 6.86 ± 0.16 km [M19a] geometric albedo: 0.376 ± 0.052 [M19a] color index U-B: ? color index B-V: ? taxonomic type: ? mass m: ? density ρ: (1.6 g/cm3) [*A] Hill radius rH: 1400 km [*E] other data, primary: diameter dp: 7.7 km [M25a] dimensions : 8.8 x <7.0km [M25a] axial ratios a/b, b/c: 1.26, ? [*D] rotation period RPp: 3.138 h [JPL] amplitude in mag., rotational ΔM: ? pole direction Β, λ: ? , ? other data, secondary: diameter ds: 1.3 km [M24a] diameter ratio ds/dp: 0.17 [*D] component mag. difference ΔM: 3.9 [*D] rotation period RPs: ?