(524531) 2002 XH91

--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, Cubewano orbital data, primary (osculating elements) [JPL] : semimajor axis a: 43.752 AU orbital period P: 289.399 yr (= 105705 d) eccentricity e: 0.093582 perihelion distance q: 39.6576 AU aphelion distance Q: 47.8464 AU inclination i: 5.00066° argument of perihelion ω: 186.5389° ascending node Ω: 80.5542° mean anomaly M: 216.4213° perihelion passage TP: 2134 Sep 29.3 Epoch: 2019 Apr 27 data arc: 2002-2018 (60 obs.) Earth MOID: 38.6413 AU Jupiter Tisserand invariant TJ: 5.871 Neptune Tisserand invariant TN: 3.080 [*D] orbital data, secondary: semimajor axis as: 22430 ± 410 km [G19b] separation/primary radius as/rp: 210 [*D] separation/Hill radius as/rH: 0.037 [*D] orbital period Ps: 371.15 ± 0.17 d [G19b] eccentricity es: 0.715 ± 0.015 [G19b] inclination is: 29.2° ± 1.7° [G19b] ascending node Ωs: 278° ± 1.8° [G19b] argument of pericenter ωs: 69.7° ± 1° [G19b] mean anomaly M: 274.1° ± 2.7° [G19b] Epoch: 2014 Dec 08.5 normalized ang. mom. αL: ?

other data, system (combined): absolute mag. H: 5.7 [MPC] slope parameter G: (0.15) [*A] effective diameter dE: 231 km [*E] geometric albedo: (0.09 ) [*A] color index U-B: ? color index B-V: ? taxonomic type: ? mass m: 6.49x1018 ± 3.6x1017 kg [G19b] density ρ: (1 g/cm3) [*A] Hill radius rH: 610000 km [*E] other data, primary: diameter dp: 216 km [*E] rotation period RPp: ? amplitude in mag., rotational ΔM: ? pole direction Β, λ: ? , ? other data, secondary: diameter ds: 133 km [*E] diameter ratio ds/dp: 0.619 [G12b] component mag. difference ΔM: 1.04 [N09d] rotation period RPs: ?