1999 RT214

--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: 42.6472 AU orbital period P: 278.507 yr (= 101726.6 d) eccentricity e: 0.04889 perihelion distance q: 40.5621 AU aphelion distance Q: 44.7323 AU inclination i: 2.57607° argument of perihelion ω: 204.9861° ascending node Ω: 138.0501° mean anomaly M: 2.867° perihelion passage TP: 2017 Feb 05.9 Epoch: 2019 Apr 27 data arc: 1999-2008 (44 obs.) Earth MOID: 39.5537 AU Jupiter Tisserand invariant TJ: 5.835 Neptune Tisserand invariant TN: 3.082 [*D] orbital data, secondary: semimajor axis as: 3396 ± 66 km [G19b] separation/primary radius as/rp: 104 [*D] separation/Hill radius as/rH: 0.018 [*D] orbital period Ps: 126.504 ± 0.046 d [G19b] eccentricity es: 0.298 ± 0.026 [G19b] inclination is: 37.5° ± 1.2° [G19b] ascending node Ωs: 40.1° ± 2.1° [G19b] argument of pericenter ωs: 156.8° ± 1.9° [G19b] mean anomaly M: 125.7° ± 1.9° [G19b] Epoch: 2014 Dec 08.5 normalized ang. mom. αL: ?

other data, system (combined): absolute mag. H: 7.8 [MPC] slope parameter G: (0.15) [*A] effective diameter dE: 79 km [*E] geometric albedo: (0.09 ) [*A] color index U-B: ? color index B-V: ? taxonomic type: ? mass m: 1.94x1017 ± 1.1x1016 kg [G19b] density ρ: (1 g/cm3) [*A] Hill radius rH: 190000 km [*E] other data, primary: diameter dp: 65 km [*E] rotation period RPp: ? amplitude in mag., rotational ΔM: ? pole direction Β, λ: ? , ? other data, secondary: diameter ds: 45 km [*E] diameter ratio ds/dp: 0.689 ± 0.029 [N08c] component mag. difference ΔM: 0.8 [N06b] rotation period RPs: ?