(1016) Anitra

--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: 2.2195521942 AU orbital period P: 3.30672473 yr (= 1207.8040184 d) eccentricity e: 0.127938491 perihelion distance q: 1.935586036 AU aphelion distance Q: 2.50351835236 AU inclination i: 6.0352086° argument of perihelion ω: 53.320283° ascending node Ω: 8.858843° mean anomaly M: 176.008388° perihelion passage TP: 2016 Jan 22.489895 Epoch: 2017 Sep 04 data arc: 1924-2017 (1851 obs.) Earth MOID: 0.955056 AU Jupiter Tisserand invariant TJ: 3.633 orbital data, secondary: semimajor axis as: ? orbital period Ps: ? eccentricity es: ? normalized ang. mom. αL: ?

other data, system (combined): absolute mag. H: 11.9 [MPC] slope parameter G: (0.15) [*A] effective diameter dE: 9.54 ± 0.08 km [M11b] geometric albedo: 0.308 ± 0.048 [M11b] color index U-B: ? color index B-V: ? taxonomic type: S (SMASSII) [JPL] mass m: ? density ρ: (1.6 g/cm3) [*A] Hill radius rH: 1500 km [*E] other data, primary: diameter dp: 9.63 ± 0.08 km [*D] rotation period RPp: 5.92951 h [JPL] amplitude in mag., rotational ΔM: ? pole direction Β, λ: ? , ? other data, secondary: diameter ds: >3.66 km [*D] diameter ratio ds/dp: >0.38 [P16d] component mag. difference ΔM: <2.1 [*D] rotation period RPs: ?