(218144) 2002 RL66

--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: Mars crossing asteroid orbital data, primary (osculating elements) [JPL] : semimajor axis a: 2.305224311 AU orbital period P: 3.500080145 yr (= 1278.404273 d) eccentricity e: 0.34082360 perihelion distance q: 1.51954947 AU aphelion distance Q: 3.090899156 AU inclination i: 22.736624° argument of perihelion ω: 74.906794° ascending node Ω: 24.014439° mean anomaly M: 89.827822° perihelion passage TP: 2013 Jul 08.01035 Epoch: 2014 May 23 data arc: 2002-2014 (313 obs.) Earth MOID: 0.679232 AU Jupiter Tisserand invariant TJ: 3.411 orbital data, secondary: semimajor axis as: ? orbital period Ps: ? eccentricity es: ? normalized ang. mom. αL: ?

other data, system (combined): absolute mag. H: 14.9 [MPC] slope parameter G: (0.15) [*A] effective diameter dE: 3.46 km [*E] geometric albedo: (0.16 ) [*A] color index U-B: ? color index B-V: ? taxonomic type: ? mass m: ? density ρ: (1.6 g/cm3) [*A] Hill radius rH: 410 km [*E] other data, primary: diameter dp: 3.46 km [*E] rotation period RPp: 587 ± 10 h [W10d] amplitude in mag., rotational ΔM: 0.04 [W10d] amplitude in mag., mutual events ΔM: 0.25 [W10d] pole direction Β, λ: ? , ? other data, secondary: diameter ds: ? diameter ratio ds/dp: ? component mag. difference ΔM: ? rotation period RPs: ?