1999 RY214
compiled by Wm. Robert Johnston
last updated 24 October 2009
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: |
45.3613276 AU
| |
orbital period P: |
305.52 y (=111,591 d)
| |
eccentricity e: |
0.1823853
| |
perihelion distance q: |
37.0880883 AU
| |
aphelion distance Q: |
53.6345669 AU
| |
inclination i: |
13.67541°
| |
argument of perihelion omega: |
69.94628°
| |
ascending node OMEGA: |
327.22043°
| |
mean anomaly M: |
353.10387°
| |
perihelion passage TP: |
2015-11-11.6
| |
Epoch: |
04 JAN 2010
| |
data arc: |
1999-2008 (26 obs.)
|
orbital data, secondary:
|
semimajor axis a: |
(~1,800 km separation)
| |
semimajor axis/primary radius a/Rp: |
(~30?)
| |
orbital period P: |
(~20 d?)
| |
eccentricity e: |
?
| |
other data, primary:
|
diameter: |
(125 km?)
| |
absolute magnitude H: |
7.4 [JPL]
| |
rotation period: |
?
| |
amplitude delta M: |
?
| |
color index B-V: |
?
| |
color index V-R: |
?
| |
color index R-I: |
?
| |
slope parameter G: |
(0.15) assumed
| |
geometric albedo: |
(0.09) assumed
| |
mass: |
?
| |
density: |
?
| |
type: |
?
|
other data, secondary:
|
diameter: |
(75 km?)
| |
diameter ratio Ds/Dp: |
(0.61)
| |
component magnitude difference: |
1.09 [I9075]
| |
rotation period: |
?
|
|
--1999 RY214--discovery and notes:
Primary discovered 1999.
Companion announced 24 September 2009.
See more information and links at
Asteroid/Comet Connection Catchall Catalog page
--Links, more technical:
--Links, less technical:
--Links to ADS abstracts:
© 2009 by Wm. Robert Johnston.
Last modified 24 October 2009.
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