Asteroids with Satellites Database--Johnston's Archive

(119951) 2002 KX14

compiled by Wm. Robert Johnston
last updated 24 May 2026

--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: 38.62213 AU
orbital period P: 240.0283 yr
(= 87670.3 d)
eccentricity e: 0.0447707
perihelion distance q: 36.89299 AU
aphelion distance Q: 40.35127 AU
inclination i: 0.406581°
argument of perihelion ω: 79.041°
ascending node Ω: 286.6683°
mean anomaly M: 268.96°
perihelion passage TP: 2086 Aug 03.8
Epoch: 2025 Nov 21
data arc: 1984-2023 (250 obs.)
Earth MOID: 35.8905 AU
Jupiter Tisserand invariant TJ: 5.578
Neptune Tisserand invariant TN:3.043 [*D]


orbital data, secondary:
semimajor axis as: ?
orbital period Ps: ?
eccentricity es: ?
normalized ang. mom. αL: ?

other data, system (combined):
absolute mag. H: 4.71 [MPC]
4.978 ± 0.017 [G26b]
slope parameter G: (0.15) [*A]
effective diameter dE: 455 ± 27 km [R25c]
geometric albedo: 0.097 ± 0.014/0.013 [R25c]
color index U-B: ?
color index B-V: ?
taxonomic type: ?
mass m: ?
density ρ: (1 g/cm3) [*A]
Hill radius rH: 1030000 km [*E]

other data, primary:
diameter dp: 389.2 ± 8.7 km [R25c]
dimensions :482 x 314 km [R25c]
axial ratios a/b, b/c:1.53, ? [*D]
geometric albedo :0.119± 0.007[R25c]
rotation period RPp: ?
amplitude in mag., rotational ΔM: <0.05 [G26b]
pole direction Β, λ: ? , ?


other data, secondary:
diameter ds: 251 ± 65/57 km [G26b]
diameter ratio ds/dp: 0.64 ± 0.17 [*D]
component mag. difference ΔM: 0.95 ± 0.58 [*D]
geometric albedo :0.084± 0.011[0.013]
rotation period RPs: ?

-- (119951) 2002 KX14 --discovery and notes:

Primary discovered 2002 May 17 from Palomar Observatory, California, USA by C. A. Trujillo and M. E. Brown. Linked to prediscovery observations from 1984 May 31. Permanent number assigned 2005 Nov 16.

Companion discovered by J. M. Gomez-Limon, R. Leiva, J. L. Ortiz, P. Santos-Sanz, M. Kretlow, Y. Kilic, J. L. Rizos, A. Alvarez-Candal, and T. Muller using observations. Announced 2026 May 22 [G26b].

--Links, more technical:

--Links, less technical:

--Links to ADS abstracts:


© 2026 by Wm. Robert Johnston.
Last modified 24 May 2026.
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