(501214) 2013 TC146

--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: Centaur orbital data, primary (osculating elements) [JPL] : semimajor axis a: 25.20021 AU orbital period P: 126.507 yr (= 46206.67 d) eccentricity e: 0.164216 perihelion distance q: 21.06193 AU aphelion distance Q: 29.33849 AU inclination i: 14.220871° argument of perihelion ω: 53.6322° ascending node Ω: 147.541689° mean anomaly M: 125.2366° perihelion passage TP: 1982 Jun 05.65 Epoch: 2026 Jun 09 data arc: 2009-2025 (528 obs.) Earth MOID: 20.0809 AU Jupiter Tisserand invariant TJ: 4.415 Neptune Tisserand invariant TN: 2.944 [*D] orbital data, secondary: semimajor axis as: 1150 ± 30 km (separation) [P26l] separation/primary radius as/rp: 11 [*E] separation/Hill radius as/rH: 0.0035 [*E] orbital period Ps: 4.2 d [*E] eccentricity es: ? normalized ang. mom. αL: ?

other data, system (combined): absolute mag. H: 6.6 [MPC] slope parameter G: (0.15) [*A] effective diameter dE: 264 km [*E] geometric albedo: (0.058 ) [*A] color index U-B: ? color index B-V: ? taxonomic type: ? mass m: ? density ρ: (1 g/cm3) [*A] Hill radius rH: 330000 km [*E] other data, primary: diameter dp: 206 km [*E] rotation period RPp: ? amplitude in mag., rotational ΔM: ? pole direction Β, λ: ? , ? other data, secondary: diameter ds: 165 km [*E] diameter ratio ds/dp: 0.80 ± 0.03 [*D] component mag. difference ΔM: 0.48 ± 0.09 [P26l] rotation period RPs: ?