(190166) 2005 UP156

--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: NEA, Amor orbital data, primary (osculating elements) [JPL] : semimajor axis a: 2.115549502 AU orbital period P: 3.077051662 yr (= 1123.914346 d) eccentricity e: 0.469603066 perihelion distance q: 1.12208097 AU aphelion distance Q: 3.109018033 AU inclination i: 4.2083056° argument of perihelion ω: 91.155853° ascending node Ω: 193.406532° mean anomaly M: 18.5392629° perihelion passage TP: 2017 Jul 08.120712 Epoch: 2017 Sep 04 data arc: 2002-2017 (803 obs.) Earth MOID: 0.131551 AU Jupiter Tisserand invariant TJ: 3.582 orbital data, secondary: semimajor axis as: 2.7 km [T19a] orbital period Ps: 1.689 ± 0.0003 d [T17b] eccentricity es: ? normalized ang. mom. αL: ?

other data, system (combined): absolute mag. H: 17.1 [MPC] slope parameter G: (0.15) [*A] effective diameter dE: 1.05 ± 0.03 km [N15e] geometric albedo: 0.234 ± 0.033 [N15e] color index U-B: ? color index B-V: ? taxonomic type: ? mass m: ? density ρ: 1.6 g/cm3[T19a] Hill radius rH: 81 km [*E] other data, primary: diameter dp: 0.74 km [*D] rotation period RPp: 40.542 ± 0.008 h [T17b] amplitude in mag., rotational ΔM: 1.05 [B17d] pole direction Β, λ: ? , ? other data, secondary: diameter ds: 0.74 km [*D] diameter ratio ds/dp: 1.0 [T19b] component mag. difference ΔM: 0.0 [*D] rotation period RPs: ?