Asteroids with Satellites Database--Johnston's Archive

(119067) 2001 KP76

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, 4:7 resonance

orbital data, primary (osculating elements) [JPL] :
semimajor axis a: 43.422 AU
orbital period P: 286.132 yr
(= 104509.6 d)
eccentricity e: 0.18742
perihelion distance q: 35.284 AU
aphelion distance Q: 51.559 AU
inclination i: 7.2063°
argument of perihelion ω: 304.70°
ascending node Ω: 42.8107°
mean anomaly M: 292.30°
perihelion passage TP: 2068 Mar 12
Epoch: 2014 May 23
data arc: 2001-2007 (24 obs.)
Earth MOID: 34.2814 AU
Jupiter Tisserand invariant TJ: 5.75
Neptune Tisserand invariant TN:3.03 [*D]

orbital data, secondary:
semimajor axis as: 8900 ± 100 km (separation) [G12b]
separation/primary radius as/rp:120 [*E]
separation/Hill radius as/rH:0.020 [*E]
orbital period Ps: 130 d [*E]
eccentricity es: ?
normalized ang. mom. αL: ?

other data, system (combined):
absolute mag. H: 6.6 [MPC]
slope parameter G: (0.15) [*A]
effective diameter dE: 211 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: 440000 km [*E]

other data, primary:
diameter dp: 153 km [*E]
rotation period RPp: ?
amplitude in mag., rotational ΔM: ?
pole direction Β, λ: ? , ?

other data, secondary:
diameter ds: 146 km [*E]
diameter ratio ds/dp: 0.955 [M08b]
component mag. difference ΔM: 0.1 [I8922]
rotation period RPs: ?

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

Primary discovered 2001 May 23 from Cerro Tololo Observatory, La Serena, Chile by M. W. Buie. Permanent number assigned 2005 Nov 16.

Companion discovered 2007 May 08 by F. Marchis, M. Baek, J. Berthier, P. Descamps, F. Vachier, K. S. Noll, S. D. Kern, and W. M. Grundy using Hubble Space Telescope observations from Hubble Space Telescope. Announced 2008 Feb 19 [M08b].

--Links, more technical:

--Links, less technical:

--Links to ADS abstracts:

© 2008, 2014 by Wm. Robert Johnston.
Last modified 20 September 2014.
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