Asteroids with Satellites Database--Johnston's Archive

(300163) 2006 VW139 = 288P

compiled by Wm. Robert Johnston
last updated 24 September 2017

--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: main belt asteroid/comet


orbital data, primary (osculating elements) [JPL] :
semimajor axis a: 3.048841784 AU
orbital period P: 5.323562187 yr
(= 1944.467812 d)
eccentricity e: 0.20107159
perihelion distance q: 2.43580632 AU
aphelion distance Q: 3.661877248 AU
inclination i: 3.240216°
argument of perihelion ω: 281.00445°
ascending node Ω: 83.1866°
mean anomaly M: 55.529429°
perihelion passage TP: 2016 Nov 08.06892
Epoch: 2017 Sep 04
data arc: 2000-2016 (243 obs.)
Earth MOID: 1.43593 AU
Jupiter Tisserand invariant TJ: 3.204


orbital data, secondary:
semimajor axis as: 104 ± 32 km [A17a]
separation/primary radius as/rp:120 [*D]
separation/Hill radius as/rH:0.29 [*D]
orbital period Ps: 140 ± 40 d [A17a]
eccentricity es: 0.77 ± 0.13 [A17a]
normalized ang. mom. αL: ?

other data, system (combined):
absolute mag. H: 16.2 [MPC]
17 ± 0.1 [A16b]
slope parameter G: (0.15) [*A]
effective diameter dE: 2.6 ± 0.5 km [A16b]
geometric albedo: (0.04 ) [*A]
color index U-B: ?
color index B-V: 0.67 ± 0.04 [A16b]
color index V-R:0.50 ± 0.03 [A16b]
color index B-R:1.17 ± 0.04 [A16b]
taxonomic type: ?
mass m: 6.15x1012 ± 4.85x1012 kg [A17a]
density ρ: 0.95 ± 3.25/0.83 g/cm3[*D]
Hill radius rH: 360 km [*E]

other data, primary:
diameter dp: 1.8 ± 0.2 km [*D]
rotation period RPp: ?
amplitude in mag., rotational ΔM: ?
pole direction Β, λ: ? , ?


other data, secondary:
diameter ds: 1.8 ± 0.2 km [*D]
diameter ratio ds/dp: 1 [A17a]
component mag. difference ΔM: 0 [*D]
rotation period RPs: ?

-- (300163) 2006 VW139 --discovery and notes:

Primary discovered 2006 Nov 15 from Kitt Peak Observatory, Arizona, USA by Spacewatch Program. Alternate designation(s): 288P. Linked to prediscovery observations from 2000 Sep 03. Permanent number assigned 2011 Oct 12.

Companion discovered 2011 Dec 07 by J. Agarwal, D. Jewitt, M. Mutchler, H. Weaver, S. Larson using Hubble Space Telescope observations from Hubble Space Telescope. Announced 2017 Sep 21 [A17a].

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© 2017 by Wm. Robert Johnston.
Last modified 24 September 2017.
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