(4092) Tyr

--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: 2.6323671916 AU orbital period P: 4.2709029617 yr (= 1559.9767688 d) eccentricity e: 0.250605666 perihelion distance q: 1.972681058 AU aphelion distance Q: 3.2920533247 AU inclination i: 4.02583068° argument of perihelion ω: 108.6027223° ascending node Ω: 253.8247805° mean anomaly M: 321.9044852° perihelion passage TP: 2020 Nov 12.078106 Epoch: 2020 May 31 data arc: 1997-2020 (2536 obs.) Earth MOID: 0.974767 AU Jupiter Tisserand invariant TJ: 3.35 orbital data, secondary: semimajor axis as: 13 km [*E] separation/primary radius as/rp: 3.9 [*E] separation/Hill radius as/rH: 0.011 [*E] orbital period Ps: 0.670313 ± 0.000022 d [B20a] eccentricity es: ? normalized ang. mom. αL: ?

other data, system (combined): absolute mag. H: 13.25 [MPC] slope parameter G: (0.15) [*A] effective diameter dE: 7.4 km [*E] geometric albedo: (0.16 ) [*A] color index U-B: ? color index B-V: ? taxonomic type: ? mass m: ? density ρ: 2.1 g/cm3[B20a] Hill radius rH: 1200 km [*E] other data, primary: diameter dp: 6.7 km [*E] rotation period RPp: 16.0875 ± 0.0005 h [B20a] amplitude in mag., rotational ΔM: 0.52 ± 0.01 [B20a] amplitude in mag., mutual events ΔM: 0.2 ±0.03 [R20a] pole direction Β, λ: ? , ? other data, secondary: diameter ds: 3.0 km [*E] diameter ratio ds/dp: >0.45 [R20a] component mag. difference ΔM: <1.73 [*D] rotation period RPs: 16.0875 ± 0.0005 h [B20a]