Asteroids with Satellites Database--Johnston's Archive
2005 VZ122
compiled by Wm. Robert Johnston
last updated
20 September 2014
--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:
TNO, Cubewano
orbital data, primary (osculating elements)
[JPL]
:
semimajor axis a: |
41.497 AU
|
orbital period P: |
267.321 yr (= 97639.2 d)
|
eccentricity e: |
0.18241
|
perihelion distance q: |
33.927 AU
|
aphelion distance Q: |
49.067 AU
|
inclination i: |
12.0966°
|
argument of perihelion ω: |
181.26°
|
ascending node Ω: |
221.9260°
|
mean anomaly M: |
24.72°
|
perihelion passage TP: |
1996 Jan 13
|
Epoch: |
2014 May 23
|
data arc: |
2005-2008
(17 obs.)
|
Earth MOID: |
32.9353 AU
|
Jupiter Tisserand invariant TJ: |
5.555
|
Neptune Tisserand invariant TN: | 2.98 [*D] |
orbital data, secondary:
semimajor axis as: |
2300
± 300 km
(separation)
[G12b]
|
separation/primary radius as/rp: | 37 [*E] |
separation/Hill radius as/rH: | 0.0081 [*E] |
orbital period Ps: |
30
d [*E]
|
eccentricity es: |
?
|
normalized ang. mom. αL: |
?
|
|
other data, system (combined):
absolute mag. H: |
7.6
[MPC]
|
slope parameter G: |
(0.15) [*A]
|
effective diameter dE: |
133
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: |
290000 km [*E]
|
other data, primary:
diameter dp: |
124
km [*E]
|
rotation period RPp: |
?
|
amplitude in mag., rotational ΔM: |
?
|
pole direction Β, λ: |
?
,
?
|
other data, secondary:
diameter ds: |
49
km [*E]
|
diameter ratio ds/dp: |
0.398
[G12b]
|
component mag. difference ΔM: |
2.00
[G12b]
|
rotation period RPs: |
?
|
|
|
--
2005 VZ122
--discovery and notes:
Primary discovered
2005 Nov 02
from
Kitt Peak Observatory, Arizona, USA
by
?.
Companion discovered
2008 Sep 25
using
Hubble Space Telescope
observations from Hubble Space Telescope.
Announced
2011.
--Links, more technical:
--Links, less technical:
--Links to ADS abstracts:
©
2011-2013, 2014
by Wm. Robert Johnston.
Last modified
20 September 2014.
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