(119067) 2001 KP76

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: 43.8437722 AU
orbital period P: 290.32 y (=106,037.7 d)
eccentricity e: 0.1903397
perihelion distance q: 35.4985618 AU
aphelion distance Q: 52.1889826 AU
inclination i: 7.19457°
argument of perihelion omega: 302.18949°
ascending node OMEGA: 42.77166°
mean anomaly M: 286.88198°
perihelion passage TP: 2066-10-13.8
Epoch: 27 OCT 2007
data arc: 2001-2005 (18 obs.)

orbital data, secondary:
semimajor axis a: (8,900 km separation) [I8922]
semimajor axis/primary radius a/Rp: (120?)
orbital period P: (~130 d?)
eccentricity e: ?

other data, primary:
diameter: (152 km?)
absolute magnitude H: 6.6 [JPL]
rotation period: ?
amplitude delta M: ?
color index B-V: ?
color index V-R: ?
color index B-R: ?
color index R-I: ?
slope parameter G: (0.15) assumed
geometric albedo: (0.09) assumed
mass: ?
density: ?
type: ?

other data, secondary:
diameter: (145 km?)
diameter ratio Ds/Dp: (0.95)
component magnitude difference: 0.1 [I8922]
rotation period: ?

--(119067) 2001 KP76--discovery and notes:

Primary discovered 23 May 2001 by M. W. Buie from Cerro Tololo. (119067) 2001 KP76 is a 4:7 resonance object.

Companion discovered by F. Marchis, M. Baek, J. Berthier, P. Descamps, F. Vachier, K. S. Noll, S. D. Kern, and W. M. Grundy from Hubble Space Telescope observations obtained 8 May 2007, announced 19 February 2008.

--Links, more technical:

--Links, less technical:

--Links to ADS abstracts:

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