2020 BD12

--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, Amor orbital data, primary (osculating elements) [JPL] : semimajor axis a: 2.475245322 AU orbital period P: 3.894355328 yr (= 1422.413284 d) eccentricity e: 0.487213678 perihelion distance q: 1.26927194 AU aphelion distance Q: 3.6812187 AU inclination i: 11.4258574° argument of perihelion ω: 193.421426° ascending node Ω: 354.252458° mean anomaly M: 359.3025° perihelion passage TP: 2024 Apr 02.755926 Epoch: 2024 Mar 31 data arc: 2019-2024 (141 obs.) Earth MOID: 0.275559 AU Jupiter Tisserand invariant TJ: 3.283 orbital data, secondary: semimajor axis as: 0.50 km [*E] separation/primary radius as/rp: 4.4 [*E] separation/Hill radius as/rH: 0.022 [*E] orbital period Ps: 1.01 ± 0.002 d [P24c] eccentricity es: ? normalized ang. mom. αL: ?

other data, system (combined): absolute mag. H: 20.82 [MPC] slope parameter G: (0.15) [*A] effective diameter dE: 0.23 km [*E] geometric albedo: (0.16 ) [*A] color index U-B: ? color index B-V: ? color index V-R: 0.39 ± 0.03 [P24c] taxonomic type: ? mass m: ? density ρ: (1.6 g/cm3) [*A] Hill radius rH: 22 km [*E] other data, primary: diameter dp: 0.23 km [*E] rotation period RPp: 24.25 ± 0.05 h [P24c] amplitude in mag., rotational ΔM: 0.22 [P24c] amplitude in mag., mutual events ΔM: 0.44 ±0.11 [P24c] pole direction Β, λ: ? , ? other data, secondary: diameter ds: ? diameter ratio ds/dp: ? component mag. difference ΔM: ? rotation period RPs: ?