2018 EB

--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, Apollo (PHA) orbital data, primary (osculating elements) [JPL] : semimajor axis a: 1.016623328 AU orbital period P: 1.025057692 yr (= 374.4023219 d) eccentricity e: 0.012192593 perihelion distance q: 1.004228054 AU aphelion distance Q: 1.029018602 AU inclination i: 29.4360571° argument of perihelion ω: 126.864886° ascending node Ω: 194.55352591° mean anomaly M: 293.139232° perihelion passage TP: 2021 Sep 08.535630 Epoch: 2021 Jul 01 data arc: 2018-2020 (272 obs.) Earth MOID: 0.009693 AU Jupiter Tisserand invariant TJ: 5.888 orbital data, secondary: semimajor axis as: 0.3 km (separation) [B18l] separation/primary radius as/rp: 2.5 [*E] separation/Hill radius as/rH: 0.016 [*E] orbital period Ps: ? eccentricity es: ? normalized ang. mom. αL: ?

other data, system (combined): absolute mag. H: 21.9 [MPC] slope parameter G: (0.15) [*A] effective diameter dE: 0.24 km [B18a] geometric albedo: 0.07 [B18a] color index U-B: ? color index B-V: ? taxonomic type: ? mass m: ? density ρ: (1.6 g/cm3) [*A] Hill radius rH: 19 km [*E] other data, primary: diameter dp: 0.24 km [B18a] rotation period RPp: 3.16 h [W21b] amplitude in mag., rotational ΔM: ? pole direction Β, λ: ? , ? other data, secondary: diameter ds: 0.04 km [B18l] diameter ratio ds/dp: 0.167 [*D] component mag. difference ΔM: 3.89 [*D] rotation period RPs: ?