(84522) 2002 TC302

--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: TNO, 2:5 resonance orbital data, primary (osculating elements) [JPL] : semimajor axis a: 55.837 AU orbital period P: 417.245 yr (= 152398.7 d) eccentricity e: 0.2995092 perihelion distance q: 39.11329 AU aphelion distance Q: 72.5607 AU inclination i: 35.00795° argument of perihelion ω: 86.0704° ascending node Ω: 23.825376° mean anomaly M: 331.7279° perihelion passage TP: 2058 Aug 28.42 Epoch: 2025 Nov 21 data arc: 2000-2026 (564 obs.) Earth MOID: 38.3108 AU Jupiter Tisserand invariant TJ: 5.213 Neptune Tisserand invariant TN: 2.668 [*D] orbital data, secondary: semimajor axis as: 1780 km [O20d] separation/primary radius as/rp: 7.1 [*D] separation/Hill radius as/rH: 0.0013 [*E] orbital period Ps: 2.3358 ± 0.0458 d [O20d] eccentricity es: ? normalized ang. mom. αL: ?

other data, system (combined): absolute mag. H: 3.92 [MPC] 4.23 ± 0.1 [G26b] slope parameter G: (0.15) [*A] effective diameter dE: 584 ± 106/88 km [F13a] geometric albedo: 0.115 ± 0.047/0.033 [F13a] color index U-B: ? color index B-V: ? taxonomic type: ? mass m: ? density ρ: (1 g/cm3) [*A] Hill radius rH: 1400000 km [*E] other data, primary: diameter dp: 499.6 ± 10 km [O20d] dimensions : 543 x 460 km [O20d] axial ratios a/b, b/c: 1.18, ? [*D] geometric albedo : 0.147± 0.005 [O20d] rotation period RPp: 56.06 ± 1.1 h [O20d] amplitude in mag., rotational ΔM: 0.06 ± 0.01 [O20d] pole direction Β, λ: ? , ? other data, secondary: diameter ds: 272 ± 114/92 km [G26b] diameter ratio ds/dp: 0.54 ± 0.23 [*D] component mag. difference ΔM: 1.32 ± 0.97 [*D] geometric albedo : 0.111± 0.019[0.022] rotation period RPs: ?