(48489) 1992 EZ28

--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: main belt asteroid orbital data, primary (osculating elements) [JPL] : semimajor axis a: 2.5579671365 AU orbital period P: 4.0911993637 yr (= 1494.3105676 d) eccentricity e: 0.127661884 perihelion distance q: 2.2314122328 AU aphelion distance Q: 2.8845220403 AU inclination i: 13.400082965° argument of perihelion ω: 84.33865555° ascending node Ω: 168.72645201° mean anomaly M: 318.3109159° perihelion passage TP: 2025 Oct 25.0456637 Epoch: 2025 May 05 data arc: 1989-2025 (2794 obs.) Earth MOID: 1.26633 AU Jupiter Tisserand invariant TJ: 3.387 orbital data, secondary: semimajor axis as: 5.9 km [*E] separation/primary radius as/rp: 4.3 [*E] separation/Hill radius as/rH: 0.012 [*E] orbital period Ps: 0.9504 ± 0.0004 d [A25a] eccentricity es: ? normalized ang. mom. αL: ?

other data, system (combined): absolute mag. H: 14.61 [MPC] slope parameter G: (0.15) [*A] effective diameter dE: 2.91 ± 0.34 km [M19a] geometric albedo: 0.228 ± 0.037 [M19a] color index U-B: ? color index B-V: ? color index J-H: 0.354 [S10b] taxonomic type: ? mass m: ? density ρ: (1.6 g/cm3) [*A] Hill radius rH: 490 km [*E] other data, primary: diameter dp: 2.76 ± 0.32 km [*D] axial ratios a/b, b/c: 1.1, ? [*E] rotation period RPp: 3.067 ± 0.0005 h [A25a] amplitude in mag., rotational ΔM: 0.06 [A25a] amplitude in mag., mutual events ΔM: 0.13 ±0.02 [A25a] pole direction Β, λ: ? , ? other data, secondary: diameter ds: >0.91 km [*D] diameter ratio ds/dp: >0.33 [G25a] component mag. difference ΔM: <2.4 [*D] rotation period RPs: ?