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Patroclus and Menoetius (original) (raw)
_dynamical type, primary:_Jupiter trojan asteroid, L5
_orbital data, primary (osculating elements)_[JPL] :
| semimajor axis a: | 5.21255213 AU |
|---|---|
| orbital period P: | 11.90101 yr (= 4346.84389 d) |
| eccentricity e: | 0.13954003 |
| perihelion distance q: | 4.48519247 AU |
| aphelion distance Q: | 5.93991181 AU |
| inclination i: | 22.05788892° |
| argument of perihelion ω: | 307.9633711° |
| ascending node Ω: | 44.3502185° |
| mean anomaly M: | 269.745164° |
| perihelion passage TP: | 2024 Jun 24.78800 |
| Epoch**:** | 2021 Jul 01 |
| data arc**:** | 2013-2021 (2141 obs.) |
| Earth MOID**:** | 3.53199 AU |
| Jupiter Tisserand invariant TJ: | 2.835 |
orbital data, secondary:
| binary dynamical type**:** | O [P07f] |
|---|---|
| semimajor axis as: | 695 ± 10 km [B20g] |
| separation/primary radius as/rp: | 11.0 [*D] |
| separation/Hill radius as/rH: | 0.017 [*D] |
| orbital period Ps: | 4.28276 ± 0.000005 d [B20g] |
| eccentricity es: | 0.02 ± 0.02 [M06b] |
| normalized ang. mom. αL: | 2.05 [P07f] |
other data, system (combined):
| absolute mag. H: | 8.23 [MPC] |
|---|---|
| slope parameter G: | (0.15) [*A] |
| effective diameter dE: | 168.8 ± 2.6 km [B20g] |
| geometric albedo**:** | 0.045 ± 0.009 [M10b] |
| color index U-B: | 0.215 [T95a] |
| color index B-V: | 0.677 [T95a] |
| taxonomic type**:** | P (Tholen) [JPL] |
| mass m: | 1.36x1018 ± 1.1x1017kg [M06b] |
| density ρ: | 0.81 ± 0.16 g/cm3[B20g] |
| Hill radius rH: | 41000 km [*D] |
other data, primary:
| diameter dp: | 126.6 ± 2 km [*D] |
|---|---|
| dimensions : | 130.8 x 126.2 x 122.8km [B20g] |
| axial ratios a/b, b/c: | 1.036, 1.028 [*D] |
| rotation period RPp: | 102.78624 ± 0.00015 h [B20g] |
| amplitude in mag., rotational ΔM: | 0.07 [W21b] |
| pole direction Β, λ: | ? , ? |
other data, secondary:
| diameter ds: | 111.8 ± 1.7 km [*D] |
|---|---|
| dimensions : | 117.1 x 110.8 x 107.8km [B20g] |
| axial ratios a/b, b/c: | 1.057;1.028 [*D] |
| diameter ratio ds/dp: | 0.884 ± 0.034 [B20g] |
| component mag. difference ΔM: | 0.27 ± 0.084 [*D] |
| rotation period RPs: | ? |