Asteroids with Satellites Database--Johnston's Archive

2002 VT130

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, Cubewano


orbital data, primary (osculating elements) [JPL] :
semimajor axis a: 42.623 AU
orbital period P: 278.271 yr
(= 101638.3 d)
eccentricity e: 0.02952
perihelion distance q: 41.364 AU
aphelion distance Q: 43.881 AU
inclination i: 1.161556°
argument of perihelion ω: 350.70°
ascending node Ω: 334.860°
mean anomaly M: 105.85°
perihelion passage TP: 1932 Jul 27
Epoch: 2014 May 23
data arc: 2002-2008 (33 obs.)
Earth MOID: 40.3516 AU
Jupiter Tisserand invariant TJ: 5.843
Neptune Tisserand invariant TN:3.09 [*D]


orbital data, secondary:
semimajor axis as: 2490 ± 80 km (separation) [G12b]
separation/primary radius as/rp:20 [*E]
separation/Hill radius as/rH:0.0031 [*E]
orbital period Ps: 9.8 d [*E]
eccentricity es: ?
normalized ang. mom. αL: ?

other data, system (combined):
absolute mag. H: 5.8 [MPC]
5.95 ± 0.5 [B09b]
slope parameter G: (0.15) [*A]
effective diameter dE: 324 ± 57/68 km [M13a]
geometric albedo: 0.097 ± 0.098/0.049 [M13a]
color index U-B: ?
color index B-V: 1.45 [S09b]
color index V-R:0.56 ± 0.1 [S09b]
color index B-R:2 ± 0.2 [S09b]
color index V-I:1.19 ± 0.1 [S09b]
taxonomic type: ?
mass m: ?
density ρ: (1 g/cm3) [*A]
Hill radius rH: 800000 km [*E]

other data, primary:
diameter dp: 251 km [*D]
rotation period RPp: ?
amplitude in mag., rotational ΔM: 0.21 [T14a]
pole direction Β, λ: ? , ?


other data, secondary:
diameter ds: 205 km [*D]
diameter ratio ds/dp: 0.817 [G12b]
component mag. difference ΔM: 0.44 [N09b]
rotation period RPs: ?

-- 2002 VT130 --discovery and notes:

Primary discovered 2002 Nov 07 from Kitt Peak Observatory, Arizona, USA by M. W. Buie.

Companion discovered 2008 Sep 21 by K. S. Noll, W. M. Grundy, S. D. Benecchi, and H. A. Levison using Hubble Space Telescope observations from Hubble Space Telescope. Announced 2009 Sep 24 [N09b].

--Links, more technical:

--Links, less technical:

--Links to ADS abstracts:


© 2009, 2014 by Wm. Robert Johnston.
Last modified 20 September 2014.
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