(20936) Nemrut Dagi

--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, Hungaria orbital data, primary (osculating elements) [JPL] : semimajor axis a: 1.85447473214 AU orbital period P: 2.5254546993 yr (= 922.42232892 d) eccentricity e: 0.10107587251 perihelion distance q: 1.6670320805 AU aphelion distance Q: 2.04191738373 AU inclination i: 18.600737186° argument of perihelion ω: 324.31841998° ascending node Ω: 26.62402762° mean anomaly M: 278.61470202° perihelion passage TP: 2025 May 13.5322669 Epoch: 2024 Oct 17 data arc: 1971-2024 (4105 obs.) Earth MOID: 0.685347 AU Jupiter Tisserand invariant TJ: 3.932 orbital data, secondary: semimajor axis as: 5.6 km [*E] separation/primary radius as/rp: 3.3 [*E] separation/Hill radius as/rH: 0.013 [*E] orbital period Ps: 0.64008 ± 0.00004 d [W24c] eccentricity es: ? normalized ang. mom. αL: ?

other data, system (combined): absolute mag. H: 14.01 [MPC] slope parameter G: (0.15) [*A] effective diameter dE: 3.57 ± 0.19 km [M19a] geometric albedo: 0.46 ± 0.078 [M19a] color index U-B: ? color index B-V: ? color index J-H: 0.412 ± 0.067 [S10b] taxonomic type: ? mass m: ? density ρ: (1.6 g/cm3) [*A] Hill radius rH: 450 km [*E] other data, primary: diameter dp: 3.44 ± 0.18 km [*D] rotation period RPp: 3.4204 ± 0.0002 h [W24c] amplitude in mag., rotational ΔM: 0.09 ± 0.01 [W24c] amplitude in mag., mutual events ΔM: 0.15 ±0.02 [W24c] pole direction Β, λ: ? , ? other data, secondary: diameter ds: >0.96 km [*D] diameter ratio ds/dp: >0.28 [W24c] component mag. difference ΔM: >2.76 [*D] rotation period RPs: ?