(326732) 2003 HB6

--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: 2.7118084242 AU orbital period P: 4.4656893464 yr (= 1631.1238396 d) eccentricity e: 0.571221949 perihelion distance q: 1.162763932 AU aphelion distance Q: 4.2608529165 AU inclination i: 6.6205172° argument of perihelion ω: 145.846876° ascending node Ω: 161.613498° mean anomaly M: 354.0117441° perihelion passage TP: 2021 Jul 28.1321860 Epoch: 2021 Jul 01 data arc: 2003-2021 (2810 obs.) Earth MOID: 0.161719 AU Jupiter Tisserand invariant TJ: 3.096 orbital data, secondary: semimajor axis as: 2 km [*E] separation/primary radius as/rp: 4.3 [*E] separation/Hill radius as/rH: 0.024 [*E] orbital period Ps: 0.955 ± 0.002 d [P21g] eccentricity es: ? normalized ang. mom. αL: ?

other data, system (combined): absolute mag. H: 17.71 [MPC] 17.42 ± 0.04 [P21g] slope parameter G: (0.24) [*A] effective diameter dE: 0.95 km [*E] geometric albedo: (0.16 ) [*A] color index U-B: ? color index B-V: ? color index V-R: 0.429 ± 0.01 [P21g] taxonomic type: L? (SMASSII) [P21g] mass m: ? density ρ: (1.6 g/cm3) [*A] Hill radius rH: 84 km [*E] other data, primary: diameter dp: 0.93 km [*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: 0.21 km [*E] axial ratios a/b, b/c: 1.4;? [] diameter ratio ds/dp: 0.23 ± 0.02 [P21g] component mag. difference ΔM: 3.19 ± 0.19 [*D] rotation period RPs: 22.92 ± 0.05 h [P21g]