Asteroids with Satellites Database--Johnston's Archive

(523983) 1999 RY214

compiled by Wm. Robert Johnston
last updated 27 May 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: 44.938 AU
orbital period P: 301.246 yr
(= 110033.2 d)
eccentricity e: 0.17523
perihelion distance q: 37.064 AU
aphelion distance Q: 52.813 AU
inclination i: 13.68637°
argument of perihelion ω: 69.9965°
ascending node Ω: 327.23624°
mean anomaly M: 4.084°
perihelion passage TP: 2015 Nov 25.7
Epoch: 2019 Apr 27
data arc: 1999-2018 (29 obs.)
Earth MOID: 36.0963 AU
Jupiter Tisserand invariant TJ: 5.738
Neptune Tisserand invariant TN:3.008 [*D]

orbital data, secondary:
semimajor axis as: 1500 ± 200 km (separation) [N09b]
separation/primary radius as/rp:24 [*E]
separation/Hill radius as/rH:0.0046 [*E]
orbital period Ps: 15 d [*E]
eccentricity es: ?
normalized ang. mom. αL: ?

other data, system (combined):
absolute mag. H: 7.4 [MPC]
slope parameter G: (0.15) [*A]
effective diameter dE: 146 km [*E]
geometric albedo: (0.09 ) [*A]
color index U-B: ?
color index B-V: 0.693 [P04a]
color index V-R:0.55 ± 0.065 [P04a]
color index B-R:1.258 ± 0.085 [P04a]
color index V-I:1.11 [P04a]
taxonomic type: ?
mass m: ?
density ρ: (1 g/cm3) [*A]
Hill radius rH: 330000 km [*E]

other data, primary:
diameter dp: 125 km [*E]
rotation period RPp: ?
amplitude in mag., rotational ΔM: ?
pole direction Β, λ: ? , ?

other data, secondary:
diameter ds: 76 km [*E]
diameter ratio ds/dp: 0.605 [N09b]
component mag. difference ΔM: 1.09 [N09b]
rotation period RPs: ?

-- (523983) 1999 RY214 --discovery and notes:

Primary discovered 1999 Sep 06 from Mauna Kea Observatory, Hawaii, USA by D. C. Jewitt, J. X. Luu, and C. A. Trujillo. Permanent number assigned 2019 May 18.

Companion discovered 2008 Sep 20 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, 2019 by Wm. Robert Johnston.
Last modified 27 May 2019.
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