(809875) 2020 BX12

--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: 1.600412023 AU orbital period P: 2.024677751 yr (= 739.5135484 d) eccentricity e: 0.527273435 perihelion distance q: 0.75655728 AU aphelion distance Q: 2.444266769 AU inclination i: 40.055267° argument of perihelion ω: 70.505307° ascending node Ω: 132.8467296° mean anomaly M: 93.4073569° perihelion passage TP: 2024 Apr 08.122205 Epoch: 2024 Oct 17 data arc: 2014-2024 (173 obs.) Earth MOID: 0.00129412 AU Jupiter Tisserand invariant TJ: 3.973 orbital data, secondary: semimajor axis as: >0.4 km [Z25a] separation/primary radius as/rp: 3.9 [*E] separation/Hill radius as/rH: 0.031 [*E] orbital period Ps: 1.96 ± 0.08 d [V20a] eccentricity es: ? normalized ang. mom. αL: ?

other data, system (combined): absolute mag. H: 20.63 [MPC] 20.64 ± 0.39 [JPL] slope parameter G: (0.15) [*A] effective diameter dE: 0.21 km [*D] geometric albedo: 0.22 [*D] color index U-B: ? color index B-V: ? taxonomic type: mass m: ? density ρ: (2 g/cm3) [*A] Hill radius rH: 13 km [*E] other data, primary: diameter dp: 0.205 ± 0.065 km [Z25a] dimensions : ~0.36 x ~0.12 km [*E] axial ratios a/b, b/c: 3, ? [*E] rotation period RPp: 2.5 ± 0.5 h [Z25a] amplitude in mag., rotational ΔM: 2.0 [W23f] pole direction Β, λ: ? , ? other data, secondary: diameter ds: 0.05 ± 0.025 km [Z25a] diameter ratio ds/dp: 0.24 [*D] component mag. difference ΔM: 3.1 [*D] rotation period RPs: <49 h [V20a]