(847431) 1994 CJ1

--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: 1.4902232039 AU orbital period P: 1.819219843 yr (= 664.4700476 d) eccentricity e: 0.325463227 perihelion distance q: 1.005210351 AU aphelion distance Q: 1.9752360572 AU inclination i: 2.3080301° argument of perihelion ω: 65.387097° ascending node Ω: 171.996846° mean anomaly M: 112.5115914° perihelion passage TP: 2025 Apr 27.331715 Epoch: 2025 Nov 21 data arc: 1994-2025 (204 obs.) Earth MOID: 0.0312168 AU Jupiter Tisserand invariant TJ: 4.503 orbital data, secondary: semimajor axis as: 0.525 km (separation) [T14b] separation/primary radius as/rp: 7.0 [T14b] separation/Hill radius as/rH: 0.036 [*E] orbital period Ps: 1.25 d [T14b] eccentricity es: ? normalized ang. mom. αL: ?

other data, system (combined): absolute mag. H: 21.52 [MPC] slope parameter G: (0.15) [*A] effective diameter dE: <0.21 km [T14b] geometric albedo: 0.099 [*D] color index U-B: ? color index B-V: ? taxonomic type: ? mass m: ? density ρ: (1.6 g/cm3) [*A] Hill radius rH: 15 km [*E] other data, primary: diameter dp: <0.15 km [T14b] dimensions : ~0.22 x ~0.10 km [*E] axial ratios a/b, b/c: 2.1, ? [*E] rotation period RPp: 30 h [W14e] amplitude in mag., rotational ΔM: 0.8 [W23f] pole direction Β, λ: ? , ? other data, secondary: diameter ds: <0.15 km [T14b] diameter ratio ds/dp: 1.0 [B14f] component mag. difference ΔM: 0.0 [*D] rotation period RPs: 30.5 h [B24f]