Asteroids with Satellites Database--Johnston's Archive

(82075) 2000 YW134

compiled by Wm. Robert Johnston
last updated 11 May 2014
under construction--testing upgrades!

--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, 3:8 resonance


orbital data, primary (osculating elements) [JPL] :
semimajor axis a: 58.340 AU
orbital period P: 445.612 yr (= 162759.9 d)
eccentricity e: 0.29405
perihelion distance q: 41.1853 AU
aphelion distance Q: 75.495 AU
inclination i: 19.76854°
argument of perihelion ω: 316.898°
ascending node Ω: 126.94097°
mean anomaly M: 28.282°
perihelion passage TP: 1979 May 20
Epoch: 2014 May 23
data arc: 2000-2009 (77 obs.)
Earth MOID: 40.2279 AU
Jupiter Tisserand invariant TJ: 6.113
Neptune Tisserand invariant TN:3.02 [*D]


orbital data, secondary:
semimajor axis as: 1900 ± 300 km (separation) [S06c]
separation/primary radius as/rp:18 [*E]
separation/Hill radius as/rH:0.0032 [*E]
orbital period Ps: 10 d [*E]
eccentricity es: ?
normalized ang. mom. αL: ?

other data, system (combined):
absolute mag. H: 4.8 [MPC]
4.88 ± 0.05 [M10d]
slope parameter G: 0.15 [*A]
effective diameter dE: 229 km [M13a]
geometric albedo: 0.408 ± 0.329/0.213 [M13a]
color index U-B: 0.31 [J07a]
color index B-V: 0.87 [D05a]
color index V-R:0.39± 0.03 [D05a]
color index B-R:1.26 [D05a]
color index V-I:1.07± 0.03 [D05a]
color index R-J:1.29 [*D]
color index V-J:1.68± 0.12 [D07c]
color index J-H:0.34± 0.1 [D07c]
color index V-H:2.02 [D07c]
taxonomic type: ? BR? (BBRB) [*B05c]
mass m: ?
density ρ: 1 g/cm3 [*A]
Hill radius rH: 600000 km [*E]

other data, primary:
diameter dp: 216 km [*D]
rotation period RPp: ?
amplitude in mag., rotational ΔM: ?
pole direction : ? ; ?


other data, secondary:
diameter ds: 75 km [*D]
diameter ratio ds/dp: 0.347 [G12b]
component mag. difference ΔM: 1.3 [*S05a]
rotation period RPs: ?

-- (82075) 2000 YW134 --discovery and notes:

Primary discovered 2000 Dec 26 from Kitt Peak Observatory, Arizona, USA by Spacewatch. Alternate designation(s): 2001 XG201. Permanent number assigned 2004 May 04.

Companion discovered 2002 Oct 25 using HST observations from Hubble Space Telescope. Announced 2005 Oct 06.

--Links, more technical:

--Links, less technical:

--Links to ADS abstracts:


© 2005-2006, 2014 by Wm. Robert Johnston.
Last modified 11 May 2014.
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