(326732) Nice

--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: 2.7121673806 AU orbital period P: 4.466660405 yr (= 1631.4477129 d) eccentricity e: 0.57030834 perihelion distance q: 1.165395704 AU aphelion distance Q: 4.2589390575 AU inclination i: 6.6194432° argument of perihelion ω: 145.829053° ascending node Ω: 161.617774° mean anomaly M: 259.90267009° perihelion passage TP: 2026 Jan 13.6209999 Epoch: 2024 Oct 17 data arc: 2003-2021 (5867 obs.) Earth MOID: 0.164871 AU Jupiter Tisserand invariant TJ: 3.097 orbital data, secondary: semimajor axis as: 3.5 km [*E] separation/primary radius as/rp: 4.0 [*E] separation/Hill radius as/rH: 0.023 [*E] orbital period Ps: 0.955 ± 0.002 d [P21g] eccentricity es: ? normalized ang. mom. αL: ?

other data, system (combined): absolute mag. H: 17.63 [MPC] 17.42 ± 0.04 [P21g] slope parameter G: (0.24) [*A] effective diameter dE: 1.81 km [*E] geometric albedo: (0.058 ) [*A] color index U-B: ? color index B-V: 0.676 [L18a] color index V-R: 0.429 ± 0.01 [P21g] color index B-R: 1.105 ± 0.12 [*D] color index V-I: 0.786 ± 0.054 [L18a] taxonomic type: L? (SMASSII) [P21g] mass m: ? density ρ: (1.3 g/cm3) [*A] Hill radius rH: 150 km [*E] other data, primary: diameter dp: 1.76 km [*E] axial ratios a/b, b/c: 1.1, ? [*E] rotation period RPp: 3.463 ± 0.0008 h [P21g] amplitude in mag., rotational ΔM: 0.08 [P21g] amplitude in mag., mutual events ΔM: 0.085 ±0.025 [P21g] pole direction Β, λ: ? , ? other data, secondary: diameter ds: 0.41 km [*E] axial ratios a/b, b/c: 1.4;? [] diameter ratio ds/dp: 0.23 ± 0.02 [P21g] component mag. difference ΔM: 3.2 ± 0.2 [*D] rotation period RPs: 22.92 ± 0.05 h [P21g]