Asteroids with Satellites Database--Johnston's Archive

(68063) 2000 YJ66

compiled by Wm. Robert Johnston
last updated 16 July 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: NEA, Amor


orbital data, primary (osculating elements) [JPL] :
semimajor axis a: 2.333164015 AU
orbital period P: yr
(= 1301.716264 d)
eccentricity e: 0.45744163
perihelion distance q: 1.26587767 AU
aphelion distance Q: 3.400450364 AU
inclination i: 5.7199202°
argument of perihelion ω: 50.341664°
ascending node Ω: 308.862341°
mean anomaly M: 309.1133765°
perihelion passage TP: 2018 Mar 06.999848
Epoch: 2017 Sep 04
data arc: 1989-2017 (665 obs.)
Earth MOID: 0.27422 AU
Jupiter Tisserand invariant TJ: 3.415


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

other data, system (combined):
absolute mag. H: 15.5 [MPC]
slope parameter G: (0.15) [*A]
effective diameter dE: 2.3 ± 0.07 km [JPL]
geometric albedo: 0.211 ± 0.037 [JPL]
color index U-B: ?
color index B-V: ?
taxonomic type: ?
mass m: ?
density ρ: (1.6 g/cm3) [*A]
Hill radius rH: 230 km [*E]

other data, primary:
diameter dp: 2.3 ± 0.07 km [JPL]
rotation period RPp: 2.1102 h [JPL]
amplitude in mag., rotational ΔM: ?
pole direction Β, λ: ? , ?


other data, secondary:
diameter ds: ?
diameter ratio ds/dp: ?
component mag. difference ΔM: ?
rotation period RPs: ?

-- (68063) 2000 YJ66 --discovery and notes:

Primary discovered 2000 Dec 30 from Kitt Peak Observatory, Arizona, USA by Spacewatch Program. Alternate designation(s): 1964 VG. Linked to prediscovery observations from 1964. Permanent number assigned 2003 Sep 10.

Companion discovered by B. D. Warner, R. D. Stephens, A. W. Harris using lightcurve observations. Announced 2014 Dec [W15a].

--Links, more technical:

--Links, less technical:

--Links to ADS abstracts:


© 2017 by Wm. Robert Johnston.
Last modified 16 July 2017.
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