2004 HD79 (original) (raw)
_dynamical type, primary:_TNO, Cubewano
_orbital data, primary (osculating elements)_[JPL] :
| semimajor axis a: | 46.293 AU |
|---|---|
| orbital period P: | 314.98 yr (= 115046.5 d) |
| eccentricity e: | 0.02677 |
| perihelion distance q: | 45.063 AU |
| aphelion distance Q: | 47.523 AU |
| inclination i: | 1.30474° |
| argument of perihelion ω: | 221.15° |
| ascending node Ω: | 159.016° |
| mean anomaly M: | 227.42° |
| perihelion passage TP: | 2135 Apr 29.6 |
| Epoch**:** | 2019 Apr 27 |
| data arc**:** | 2004-2013 (24 obs.) |
| Earth MOID**:** | 44.0649 AU |
| Jupiter Tisserand invariant TJ: | 6.074 |
orbital data, secondary:
| semimajor axis as: | 2780 ± 80 km (separation) [G19c] |
|---|---|
| separation/primary radius as/rp: | 23 [*E] |
| separation/Hill radius as/rH: | 0.003 [*E] |
| orbital period Ps: | 12 d [*E] |
| eccentricity es: | ? |
| normalized ang. mom. αL: | ? |
other data, system (combined):
| absolute mag. H: | 5.7 [MPC]6.3 ± 0.5 [G19c] |
|---|---|
| slope parameter G: | (0.15) [*A] |
| effective diameter dE: | 319 km [*E] |
| geometric albedo**:** | (0.09 ) [*A] |
| color index U-B: | ? |
| color index B-V: | ? |
| taxonomic type**:** | ? |
| mass m: | ? |
| density ρ: | (1 g/cm3) [*A] |
| Hill radius rH: | 880000 km [*E] |
other data, primary:
| diameter dp: | 243 km [*E] |
|---|---|
| rotation period RPp: | >8 h [T19b] |
| amplitude in mag., rotational ΔM: | ? |
| pole direction Β, λ: | ? , ? |
other data, secondary:
| diameter ds: | 206 km [*E] |
|---|---|
| diameter ratio ds/dp: | 0.85 [*D] |
| component mag. difference ΔM: | 0.36 [G19c] |
| rotation period RPs: | ? |