(17365) Thymbraeus

--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: Jupiter trojan asteroid, L5 orbital data, primary (osculating elements) [JPL] : semimajor axis a: 5.267589805 AU orbital period P: 12.0899951 yr (= 4415.870711 d) eccentricity e: 0.078943378 perihelion distance q: 4.851748471 AU aphelion distance Q: 5.683431138 AU inclination i: 11.64651519° argument of perihelion ω: 118.02665° ascending node Ω: 252.1500939° mean anomaly M: 44.03581687° perihelion passage TP: 2012 Nov 28.8431 Epoch: 2014 May 23 data arc: 1954-2014 (680 obs.) Earth MOID: 3.8706 AU Jupiter Tisserand invariant TJ: 2.953 orbital data, secondary: semimajor axis as: 58 km [*E] separation/primary radius as/rp: 3.4 [*E] separation/Hill radius as/rH: 0.0051 [*D] orbital period Ps: 0.528 ± 0.0008 d [M07a] eccentricity es: ? normalized ang. mom. αL: ?

other data, system (combined): absolute mag. H: 10.3 [MPC] slope parameter G: (0.15) [*A] effective diameter dE: 44.9 ± 0.53 km [G12d] geometric albedo: 0.066 ± 0.009 [G12d] color index U-B: ? color index B-V: ? taxonomic type: ? mass m: 2.26x1016 kg [*D] density ρ: 0.78 ± 0.07 g/cm3[M07a] Hill radius rH: 11000 km [*D] other data, primary: diameter dp: 34.33 ± 0.41 km [*D] rotation period RPp: 12.672 ± 0.019 h [M07a] amplitude in mag., rotational ΔM: 0.98 ± 0.02 [M07a] pole direction Β, λ: ? , ? other data, secondary: diameter ds: 28.94 ± 2.33 km [*D] diameter ratio ds/dp: 0.843 ± 0.067 [M07a] component mag. difference ΔM: 0.37 ± 0.17 [*D] rotation period RPs: ?