2006 GY2
compiled by Wm. Robert Johnston
last updated 5 March 2007
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: |
1.8546853 AU
| |
orbital period P: |
2.530 y (=922.5794 d)
| |
eccentricity e: |
0.49432016
| |
perihelion distance q: |
0.93787695 AU
| |
aphelion distance Q: |
2.7714936 AU
| |
inclination i: |
30.59322570°
| |
argument of perihelion omega: |
216.67934766°
| |
ascending node OMEGA: |
54.402762522°
| |
mean anomaly M: |
320.848170°
| |
perihelion passage TP: |
2006-06-14.335199
| |
Epoch: |
06 MAR 2006
| |
data arc: |
37 days (260 obs.)
|
orbital data, secondary:
|
semimajor axis a: |
(0.6 km)
| |
semimajor axis/primary radius a/Rp: |
(~2.7)
| |
orbital period P: |
11.7±0.2 h [B06f]
| |
eccentricity e: |
?
| |
other data, primary:
|
diameter: |
0.45 km [B06e]
| |
absolute magnitude H: |
18.7 ± 0.4 [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: |
(0.28)
| |
mass: |
?
| |
density: |
?
| |
type: |
?
|
other data, secondary:
|
diameter: |
?
| |
diameter ratio Ds/Dp: |
?
| |
component magnitude difference: |
?
| |
rotation period: |
?
|
|
--2006 GY2--discovery and notes:
Primary discovered 9 April 2006.
Companion discovered based on radar observations in May 2006 from Arecibo and Goldstone.
--Links, more technical:
--Links, less technical:
--Links to ADS abstracts:
© 2006, 2007 by Wm. Robert Johnston.
Last modified 5 March 2007.
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