(555915) 2014 GX53

--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, 7:11 resonance orbital data, primary (osculating elements) [JPL] : semimajor axis a: 40.53537 AU orbital period P: 258.0831 yr (= 94264.8 d) eccentricity e: 0.135511 perihelion distance q: 35.04239 AU aphelion distance Q: 46.02836 AU inclination i: 14.542525° argument of perihelion ω: 129.0041° ascending node Ω: 97.057088° mean anomaly M: 5.9646° perihelion passage TP: 2021 Aug 12.18 Epoch: 2025 Nov 21 data arc: 2002-2025 (439 obs.) Earth MOID: 34.0513 AU Jupiter Tisserand invariant TJ: 5.482 Neptune Tisserand invariant TN: 2.96880105945519 [*D] orbital data, secondary: semimajor axis as: 7200 km (separation) [P26d] separation/primary radius as/rp: 45 [*E] separation/Hill radius as/rH: 0.0097 [*E] orbital period Ps: 42 d [*E] eccentricity es: ? normalized ang. mom. αL: ?

other data, system (combined): absolute mag. H: 5.34 [MPC] slope parameter G: (0.15) [*A] effective diameter dE: 320 km [*E] geometric albedo: (0.126 ) [*A] color index U-B: ? color index B-V: ? taxonomic type: ? mass m: ? density ρ: (1.0 g/cm3) [*A] Hill radius rH: 740000 km [*E] other data, primary: diameter dp: 318 km [*E] rotation period RPp: ? amplitude in mag., rotational ΔM: ? pole direction Β, λ: ? , ? other data, secondary: diameter ds: 36 km [*E] diameter ratio ds/dp: 0.11 [*D] component mag. difference ΔM: 4.76 ± 0.06 [P26d] rotation period RPs: ?