(182933) 2002 GZ31

--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, scattered disk orbital data, primary (osculating elements) [JPL] : semimajor axis a: 50.149 AU orbital period P: 355.14 yr (= 129716 d) eccentricity e: 0.23664 perihelion distance q: 38.282 AU aphelion distance Q: 62.017 AU inclination i: 1.05394° argument of perihelion ω: 165.125° ascending node Ω: 117.261° mean anomaly M: 344.207° perihelion passage TP: 2040 May 16 Epoch: 2024 Oct 17 data arc: 2002-2008 (68 obs.) Earth MOID: 37.2659 AU Jupiter Tisserand invariant TJ: 6.135 Neptune Tisserand invariant TN: 3.109 [*D] orbital data, secondary: semimajor axis as: 3370 km [E20a] separation/primary radius as/rp: 28 [*E] separation/Hill radius as/rH: 0.0061 [*E] orbital period Ps: 24.58 d [E20a] eccentricity es: 0.167 [E20a] inclination is: 158.1 ° [E20a] normalized ang. mom. αL: ?

other data, system (combined): absolute mag. H: 6.46 [MPC] slope parameter G: (0.15) [*A] effective diameter dE: 282 km [*E] geometric albedo: (0.058 ) [*A] color index U-B: ? color index B-V: ? taxonomic type: ? mass m: 5.02x1018 kg [E20a] density ρ: 0.6 g/cm3[*E] Hill radius rH: 550000 km [*E] other data, primary: diameter dp: 238 km [*E] rotation period RPp: ? amplitude in mag., rotational ΔM: ? pole direction Β, λ: ? , ? other data, secondary: diameter ds: 150 km [*E] diameter ratio ds/dp: 0.631 ± 0.058 [N08c] component mag. difference ΔM: 1.33 [G25c] rotation period RPs: ?