2001 RZ143
compiled by Wm. Robert Johnston
last updated 26 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: |
43.9224 AU
| |
orbital period P: |
291.10 y (=106,323.2 d)
| |
eccentricity e: |
0.060299
| |
perihelion distance q: |
41.2739 AU
| |
aphelion distance Q: |
46.5709 AU
| |
inclination i: |
2.12280°
| |
argument of perihelion omega: |
31.34°
| |
ascending node OMEGA: |
8.31956°
| |
mean anomaly M: |
348.03°
| |
perihelion passage TP: |
2016-12-12
| |
Epoch: |
10 APR 2007
| |
data arc: |
2001-2005 (17 obs.)
|
orbital data, secondary:
|
semimajor axis a: |
(1,400 km separation?) [N07a]
| |
semimajor axis/primary radius a/Rp: |
(13?)
| |
orbital period P: |
(~5 d?)
| |
eccentricity e: |
?
| |
other data, primary:
|
diameter: |
(201 km?)
| |
absolute magnitude H: |
5.80 ± 2.20 [JPL]
6.0 [N07a]
| |
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: |
(192 km?)
| |
diameter ratio Ds/Dp: |
(0.96)
| |
component magnitude difference: |
0.1 ± 0.3 [N07a]
| |
rotation period: |
?
|
|
--2001 RZ143--discovery and notes:
Primary discovered 12 September 2001 by M. W. Buie from Kitt Peak, Arizona, United States.
Companion reported March 2007.
--Links, more technical:
--Links, less technical:
--Links to ADS abstracts:
- Noll, Keith S., Grundy, William M., Chiang, Eugene I., Margot, Jean-Luc, & Kern, Susan D. 2007, ArXiv Astrophysics e-prints Binaries in the Kuiper Belt
© 2007, 2008 by Wm. Robert Johnston.
Last modified 26 November 2008.
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