Asteroids with Satellites Database--Johnston's Archive

(123509) 2000 WK183

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: 44.619 AU
orbital period P: 298.044 yr
(= 108860.7 d)
eccentricity e: 0.04977
perihelion distance q: 42.3979 AU
aphelion distance Q: 46.839 AU
inclination i: 1.96897°
argument of perihelion ω: 290.10°
ascending node Ω: 185.658°
mean anomaly M: 329.26°
perihelion passage TP: 2039 Nov 02
Epoch: 2014 May 23
data arc: 2000-2008 (50 obs.)
Earth MOID: 41.4146 AU
Jupiter Tisserand invariant TJ: 5.963
Neptune Tisserand invariant TN:3.11 [*D]


orbital data, secondary:
semimajor axis as: 2366 ± 28 km [G11a]
separation/primary radius as/rp:45 [*D]
separation/Hill radius as/rH:0.0066 [*D]
orbital period Ps: 30.9170 ± 0.0062 d [G11a]
eccentricity es: 0.0084 ± 0.008 [G11a]
inclination is:78.3° ± 6° [G11a]
ascending node Ωs:267.7° ± 3.5° [G11a]
argument of pericenter ωs:0° ± 75° [G11a]
mean anomaly M:267.7° ± 3.5° [G11a]
Epoch:2007 Jul 18.5
normalized ang. mom. αL: ?

other data, system (combined):
absolute mag. H: 6.6 [MPC]
slope parameter G: (0.15) [*A]
effective diameter dE: 146 km [*D]
geometric albedo: 0.18 ± 0.08/0.08 [G11a]
color index U-B: ?
color index B-V: ?
taxonomic type: ?
mass m: 1.1x1018 ± 3.9x1016 kg [G11a]
density ρ: (1 ± 1/0.5 g/cm3) [*A]
Hill radius rH: 360000 km [*D]

other data, primary:
diameter dp: 106 ± 24 km [G11a]
color index V-I:1.3 ± 0.05 [B08d]
rotation period RPp: ?
amplitude in mag., rotational ΔM: ?
pole direction Β, λ: ? , ?


other data, secondary:
diameter ds: 101 km [*D]
diameter ratio ds/dp: 0.951 [G11a]
component mag. difference ΔM: 0.4 [I8811]
color index V-I:1.24± 0.06 [B08d]
rotation period RPs: ?

-- (123509) 2000 WK183 --discovery and notes:

Primary discovered 2000 Nov 26 from European Southern Observatory, La Silla, Chile by O. R. Hainaut, C. E. Delahodde, and A. C. Delsanti. Permanent number assigned 2006 Mar 14.

Companion discovered 2005 Nov 24 by K. S. Noll, D. C. Stephens, W. M. Grundy, H. F. Levison, and S. D. Kern using Hubble Space Telescope observations from Hubble Space Telescope. Announced 2007 Feb 21 [N07e].

--Links, more technical:

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--Links to ADS abstracts:


© 2007-2012, 2014 by Wm. Robert Johnston.
Last modified 20 September 2014.
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