2006 CH69
compiled by Wm. Robert Johnston
last updated 15 August 2011
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: |
45.71659 AU
| |
orbital period P: |
309.11 y (=112,904.0 d)
| |
eccentricity e: |
0.036202
| |
perihelion distance q: |
44.06153 AU
| |
aphelion distance Q: |
47.37164 AU
| |
inclination i: |
1.7915°
| |
argument of perihelion omega: |
64.9114°
| |
ascending node OMEGA: |
40.8923°
| |
mean anomaly M: |
32.7889°
| |
perihelion passage TP: |
1983-07-01.7
| |
Epoch: |
27 AUG 2011
| |
data arc: |
2005-2008 (20 obs.)
|
orbital data, secondary:
|
semimajor axis a: |
27,600 +3,300/-2,800 km [P11a]
| |
semimajor axis/primary radius a/Rp: |
(550)
| |
orbital period P: |
3.89 +0.05/-0.07 yr [P11a]
| |
eccentricity e: |
0.90 ± 0.02 [P11a]
| |
inclination to ecliptic i: |
134.1° +4.9°/-6.1° [P11a]
| |
argument of perihelion omega: |
149° +5°/-6° [P11a]
| |
ascending node OMEGA: |
105° +6°/-8° [P11a]
| |
mean anomaly M: |
286° +4°/-3° [P11a]
| |
epoch: |
JD 2455190.06 [P11a]
| |
other data, primary:
|
diameter: |
100 +12/-10 km [P11a]
| |
absolute magnitude H: |
6.6 [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: |
0.23 +0.09/-0.06 [P11a]
| |
mass: |
(8.30 +3.35/-2.15)x1017 kg [P11a]
| |
density: |
(1 g cm-3) [a]
| |
type: |
?
|
other data, secondary:
|
diameter: |
(82 km)
| |
diameter ratio Ds/Dp: |
(0.82)
| |
component magnitude difference: |
0.44 ± 0.05 [P11a]
| |
rotation period: |
?
|
|
----discovery and notes:
Primary discovered 3 February 2006 by P. A. Wiegert and A. Papadimos from Mauna Kea. Linked to precovery observations from 2005.
Companion discovered 2006 by H.-W. Lin, J. J. Kavelaars, W.-H. Ip, B. J. Gladman, J. M. Petit, R. L. Jones, and Joel Wm. Parker from the Canada-France-Hawaii Telescope in Hawaii; reported 5 August 2010.
--Links, more technical:
--Links, less technical:
--Links to ADS abstracts:
- Lin, H.-W., Kavelaars, J. J., Ip, W.-H., Gladman, B. J., Petit, J. M., Jones, R. L., & Parker, Joel W. 2010, Publications of the Astronomical Society of the Pacific On the Detection of Two New Trans-Neptunian Binaries from the CFEPS Kuiper Belt Survey
© 2010, 2011 by Wm. Robert Johnston.
Last modified 15 August 2011.
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