(2635) Huggins

--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: 2.23151310773 AU orbital period P: 3.33355300931 yr (= 1217.58023665 d) eccentricity e: 0.07774246609 perihelion distance q: 2.0580297756 AU aphelion distance Q: 2.40499643983 AU inclination i: 4.170634261° argument of perihelion ω: 271.16589025° ascending node Ω: 276.85984815° mean anomaly M: 327.58082964° perihelion passage TP: 2025 Aug 22.6470587 Epoch: 2025 May 05 data arc: 1935-2025 (10408 obs.) Earth MOID: 1.0636 AU Jupiter Tisserand invariant TJ: 3.634 orbital data, secondary: semimajor axis as: 17 km [*E] separation/primary radius as/rp: 4.2 [*E] separation/Hill radius as/rH: 0.012 [*E] orbital period Ps: 0.8158 ± 0.0004 d [B25e] eccentricity es: ? normalized ang. mom. αL: ?

other data, system (combined): absolute mag. H: 12.94 [MPC] slope parameter G: (0.15) [*A] effective diameter dE: 8.46 ± 0.33 km [M19a] geometric albedo: 0.257 ± 0.016 [M19a] color index U-B: ? color index B-V: ? color index J-H: 0.486 ± 0.035 [S10b] taxonomic type: S (SMASSII) [B02e] mass m: ? density ρ: (2 g/cm3) [*A] Hill radius rH: 1400 km [*E] other data, primary: diameter dp: 8.08 ± 0.32 km [*D] axial ratios a/b, b/c: 1.1, ? [*E] rotation period RPp: 3.1326 ± 0.0008 h [B25e] amplitude in mag., rotational ΔM: 0.13 [B25e] amplitude in mag., mutual events ΔM: 0.1 [B25e] pole direction Β, λ: ? , ? other data, secondary: diameter ds: >2.50 km [*D] diameter ratio ds/dp: >0.31 [B25e] component mag. difference ΔM: <2.54 [*D] rotation period RPs: ?