Asteroids with Satellites Database--Johnston's Archive

2002 VD131

compiled by Wm. Robert Johnston
last updated 17 August 2019

--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: 44.95 AU
orbital period P: 301.37 yr
(= 110075.7 d)
eccentricity e: 0.06554
perihelion distance q: 42.004 AU
aphelion distance Q: 47.896 AU
inclination i: 0.85201°
argument of perihelion ω: 238.54°
ascending node Ω: 84.591°
mean anomaly M: 71.14°
perihelion passage TP: 1959 Oct 06.0
Epoch: 2019 Apr 27
data arc: 2002-2013 (16 obs.)
Earth MOID: 40.9908 AU
Jupiter Tisserand invariant TJ: 5.981

orbital data, secondary:
semimajor axis as: 14900 ± 600 km (separation) [F17a]
separation/primary radius as/rp:190 [*E]
separation/Hill radius as/rH:0.023 [*E]
orbital period Ps: 220 d [*E]
eccentricity es: ?
normalized ang. mom. αL: ?

other data, system (combined):
absolute mag. H: 6.5 [MPC]
6.9 ± 0.5 [G19c]
slope parameter G: (0.15) [*A]
effective diameter dE: 221 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: 640000 km [*E]

other data, primary:
diameter dp: 214 km [*E]
rotation period RPp: ?
amplitude in mag., rotational ΔM: ?
pole direction Β, λ: ? , ?

other data, secondary:
diameter ds: 54 km [*E]
diameter ratio ds/dp: 0.25 ± 0.02 [F17a]
component mag. difference ΔM: 3.0 [*D]
rotation period RPs: ?

-- 2002 VD131 --discovery and notes:

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

Companion discovered 2015 Dec 15 by Fraser, W. C., et al. using adaptive optics telescope observations from Baade-Magellan Telescope. Announced 2017 Apr 04 [F17a].

--Links, more technical:

--Links, less technical:

--Links to ADS abstracts:

© 2019 by Wm. Robert Johnston.
Last modified 17 August 2019.
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