(182933) 2002 GZ31
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: |
50.8742 AU
| |
orbital period P: |
362.87 y (=132,539.6 d)
| |
eccentricity e: |
0.24546
| |
perihelion distance q: |
38.3865 AU
| |
aphelion distance Q: |
63.3620 AU
| |
inclination i: |
1.055°
| |
argument of perihelion omega: |
163.482°
| |
ascending node OMEGA: |
117.163°
| |
mean anomaly M: |
328.235°
| |
perihelion passage TP: |
2039-04-16.7
| |
Epoch: |
10 APR 2007
| |
data arc: |
2002-2004 (40 obs.)
|
orbital data, secondary:
|
semimajor axis a: |
2,060 ± 270 km separation [I8815]
| |
semimajor axis/primary radius a/Rp: |
(20?)
| |
orbital period P: |
(~10 d?)
| |
eccentricity e: |
?
| |
other data, primary:
|
diameter: |
(204 km?)
| |
absolute magnitude H: |
6.3 [JPL]
| |
rotation period: |
?
| |
amplitude delta M: |
?
| |
color index B-V: |
?
| |
color index V-R: |
?
| |
color index V-I: |
?
| |
slope parameter G: |
(0.15) assumed
| |
geometric albedo: |
(0.09) assumed
| |
mass: |
?
| |
density: |
?
| |
type: |
?
|
other data, secondary:
|
diameter: |
(129 km?)
| |
diameter ratio Ds/Dp: |
(0.63)
| |
component magnitude difference: |
1.0 [I8815]
| |
rotation period: |
?
|
|
--(182933) 2002 GZ31--discovery and notes:
Primary discovered 6 April 2002 by M. W. Buie from Cerro Tololo Observatory, La Serena. Permanent number assigned 20 April 2008.
Companion discovered by K. S. Noll, W. M. Grundy, S. D. Kern, H. F. Levison, and D. C. Stephens from Hubble Space Telescope observations obtained 23 April 2006; reported 28 February 2007.
See more information and links at Asteroid/Comet Connection Catchall Catalog page
--Links, more technical:
--Links, less technical:
--Links to ADS abstracts:
© 2007, 2008 by Wm. Robert Johnston.
Last modified 26 November 2008.
Return to Home. Return to Astronomy and Space. Return to Asteroids with Satellites.