(11361) Orbinskij

--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: 2.44324659898 AU orbital period P: 3.8190835244 yr (= 1394.92025729 d) eccentricity e: 0.18844506768 perihelion distance q: 1.9828288283 AU aphelion distance Q: 2.90366436968 AU inclination i: 6.0895005° argument of perihelion ω: 191.46751062° ascending node Ω: 39.17907444° mean anomaly M: 336.90124357° perihelion passage TP: 2025 Aug 02.5025646 Epoch: 2025 May 05 data arc: 1983-2025 (5489 obs.) Earth MOID: 0.973202 AU Jupiter Tisserand invariant TJ: 3.468 orbital data, secondary: semimajor axis as: 7.5 km [*E] separation/primary radius as/rp: 3.5 [*E] separation/Hill radius as/rH: 0.011 [*E] orbital period Ps: 0.6941 ± 0.0002 d [B25i] eccentricity es: ? normalized ang. mom. αL: ?

other data, system (combined): absolute mag. H: 14.07 [MPC] slope parameter G: (0.15) [*A] effective diameter dE: 4.48 ± 0.1 km [M19a] geometric albedo: 0.32 ± 0.029 [M19a] color index U-B: ? color index B-V: ? color index J-H: 0.259 ± 0.102 [S10b] taxonomic type: ? mass m: ? density ρ: (1.6 g/cm3) [*A] Hill radius rH: 670 km [*E] other data, primary: diameter dp: 4.34 ± 0.10 km [*D] dimensions : ~4.7 x ~4.0 km [*E] axial ratios a/b, b/c: 1.2, ? [*E] rotation period RPp: 2.9497 ± 0.0001 h [B25i] amplitude in mag., rotational ΔM: 0.19 [B25i] amplitude in mag., mutual events ΔM: 0.07 [B25i] pole direction Β, λ: ? , ? other data, secondary: diameter ds: >1.13 km [*D] diameter ratio ds/dp: >0.26 [B25i] component mag. difference ΔM: 2.9 [*D] rotation period RPs: ?