1999 RT214

compiled by Wm. Robert Johnston
last updated 14 November 2008

Orbital elements and other data (Assumed or derived values in parenthesis, my estimates in italics and parenthesis. Source identifications in brackets, see this link for sources):

orbital data, primary (osculating elements) [JPL]:
semimajor axis a: 42.51757 AU
orbital period P: 277.24 y (=101,263 d)
eccentricity e: 0.045925
perihelion distance q: 40.56494 AU
aphelion distance Q: 44.47020 AU
inclination i: 2.58061°
argument of perihelion omega: 206.85126°
ascending node OMEGA: 138.06403°
mean anomaly M: 344.81134°
perihelion passage TP: 2018-06-03.4
Epoch: 22 SEP 2006
data arc: 1999-2003 (17 obs.)

orbital data, secondary:
semimajor axis a: (3,300 km separation) [I8756]
semimajor axis/primary radius a/Rp: (55?)
orbital period P: (55 d?)
eccentricity e: ?

other data, primary:
diameter: (110 km?)
absolute magnitude H: 7.8 [JPL]
rotation period: ?
amplitude delta M: ?
color index B-V: ?
color index V-R: ?
color index R-I: ?
slope parameter G: (0.15) [a]
geometric albedo: (0.09) [a]
mass: ?
density: ?
type: ?

other data, secondary:
diameter: (50 km?)
diameter ratio Ds/Dp: (0.48)
component magnitude difference: 0.8 [I8756]
rotation period: ?

--1999 RT214--discovery and notes:

Primary discovered 6 September 1999 by C. A. Trujillo, J. X. Luu, and D. C. Jewitt from Mauna Kea Observatory, Hawaii, USA.

Companion discovered by K. S. Noll, W. M. Grundy, H. F. Levison, and D. C. Stephens using Hubble Space Telescope observations from 25 July 2006, reported 29 September 2006.

See more information and links at Asteroid/Comet Connection Catchall Catalog page

--Links, more technical:

--Links, less technical:

--Links to ADS abstracts:

© 2006, 2008 by Wm. Robert Johnston.
Last modified 14 November 2008.
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