(3619) Nash

--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: 2.38720725819 AU orbital period P: 3.6884456773 yr (= 1347.20478362 d) eccentricity e: 0.23892338622 perihelion distance q: 1.8168476165 AU aphelion distance Q: 2.95756689992 AU inclination i: 4.04840715° argument of perihelion ω: 181.88849767° ascending node Ω: 161.18190883° mean anomaly M: 239.85709699° perihelion passage TP: 2027 Feb 13.6030379 Epoch: 2025 Nov 21 data arc: 1960-2025 (3794 obs.) Earth MOID: 0.807651 AU Jupiter Tisserand invariant TJ: 3.492 orbital data, secondary: semimajor axis as: 9.3 km (separation) [B26b] separation/primary radius as/rp: 4.5 [*E] separation/Hill radius as/rH: 0.015 [*E] orbital period Ps: 0.98 d [*E] eccentricity es: ? normalized ang. mom. αL: ?

other data, system (combined): absolute mag. H: 14.13 [MPC] slope parameter G: (0.15) [*A] effective diameter dE: 4.6 km [*D] geometric albedo: 0.18 [*D] color index U-B: ? color index B-V: ? taxonomic type: ? mass m: ? density ρ: (1.6 g/cm3) [*A] Hill radius rH: 610 km [*E] other data, primary: diameter dp: 4.1 km [*D] dimensions : 4.49 x 3.76 km [B26b] axial ratios a/b, b/c: 1.19, ? [*D] rotation period RPp: ? amplitude in mag., rotational ΔM: ? pole direction Β, λ: ? , ? other data, secondary: diameter ds: 2.15 ± 0.65 km [B26b] diameter ratio ds/dp: 0.52 [*D] component mag. difference ΔM: 1.41 [*D] rotation period RPs: ?