(119979) 2002 WC19

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: 47.63848 AU
orbital period P: 328.81 y (=120,098 d)
eccentricity e: 0.260564
perihelion distance q: 35.22562 AU
aphelion distance Q: 60.05135 AU
inclination i: 9.193°
argument of perihelion omega: 45.363°
ascending node OMEGA: 109.682°
mean anomaly M: 305.275°
perihelion passage TP: 2057-04-03
Epoch: 10 APR 2007
data arc: 2004-2004 (61 obs.)

orbital data, secondary:
semimajor axis a: (2,760 ± 250 km separation) [I8814]
semimajor axis/primary radius a/Rp: (14?)
orbital period P: (~7 d?)
eccentricity e: ?

other data, primary:
diameter: (401 km?)
absolute magnitude H: 5.1 [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: (127 km?)
diameter ratio Ds/Dp: (0.32)
component magnitude difference: 2.5 [I8814]
rotation period: ?

--(119979) 2002 WK19--discovery and notes:

Primary discovered 16 November 2002 from Palomar Observatory, California, USA by Palomar program. Linked to observations from 2001. (119979) is in the 1:2 orbital resonance with Neptune.

Companion discovered by K. S. Noll, W. M. Grundy, S. D. Kern, H. F. Levison, and D. C. Stephens from Hubble Space Telescope observations obtained 5 November 2006, reported 27 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.
Return to Home. Return to Astronomy and Space. Return to Asteroids with Satellites.