(123509) 2000 WK183

compiled by Wm. Robert Johnston
last updated 26 November 2008

Orbital elements and other data (Assumed or derived values in parenthesis, my estimates in italics and parenthesis. Source identifications in brackets, see this link for sources):

orbital data, primary (osculating elements) [JPL]:
semimajor axis a: 44.2015 AU
orbital period P: 293.88 y (=107,338.0 d)
eccentricity e: 0.04222
perihelion distance q: 42.3355 AU
aphelion distance Q: 46.0675 AU
inclination i: 1.971°
argument of perihelion omega: 295.659°
ascending node OMEGA: 185.783°
mean anomaly M: 314.762°
perihelion passage TP: 2044-03-14.2
Epoch: 10 APR 2007
data arc: 2000-2005 (24 obs.)

orbital data, secondary:
semimajor axis a: 2,470 ± 60 km separation [I8811]
semimajor axis/primary radius a/Rp: (30?)
orbital period P: (~16 d?)
eccentricity e: ?

other data, primary:
diameter: (178 km?)
absolute magnitude H: 6.4 [JPL]
rotation period: ?
amplitude delta M: ?
color index B-V: ?
color index V-R: ?
color index R-I: ?
slope parameter G: (0.15) assumed
geometric albedo: (0.09) assumed
mass: ?
density: ?
type: ?

other data, secondary:
diameter: (148 km?)
diameter ratio Ds/Dp: (0.83)
component magnitude difference: 0.40 [I8811]
rotation period: ?

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

Primary discovered 26 November 2000 by O. R. Hainaut, C. E. Delahodde, and A. C. Delsanti from La Silla Observatory.

Companion discovered by K. S. Noll, D. C. Stephens, W. M. Grundy, H. F. Levison, and S. D. Kern from Hubble Space Telescope observations obtained 24 November 2005; reported 21 February 2007.

See more information and links at Asteroid/Comet Connection Catchall Catalog page

--Links, more technical:

--Links, less technical:

--Links to ADS abstracts:


© 2007, 2008 by Wm. Robert Johnston.
Last modified 26 November 2008.
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