2003 YU179
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: |
46.6008808 AU
| |
orbital period P: |
318.13 y (=116,196 d)
| |
eccentricity e: |
0.1578643
| |
perihelion distance q: |
39.2442654 AU
| |
aphelion distance Q: |
53.9574962 AU
| |
inclination i: |
4.86336°
| |
argument of perihelion omega: |
325.17124°
| |
ascending node OMEGA: |
126.45051°
| |
mean anomaly M: |
21.15989°
| |
perihelion passage TP: |
1991-04-24
| |
Epoch: |
04 JAN 2010
| |
data arc: |
2003-2008 (20 obs.)
|
orbital data, secondary:
|
semimajor axis a: |
(~2,300 km separation)
| |
semimajor axis/primary radius a/Rp: |
(~30?)
| |
orbital period P: |
(~20 d?)
| |
eccentricity e: |
?
| |
other data, primary:
|
diameter: |
(147 km?)
| |
absolute magnitude H: |
7.1 [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: |
(81 km?)
| |
diameter ratio Ds/Dp: |
(0.55)
| |
component magnitude difference: |
1.3 [I9076]
| |
rotation period: |
?
|
|
--2003 YU179--discovery and notes:
Primary discovered 4 December 2003.
Companion announced 27 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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