(60621) 2000 FE8
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: |
55.699 AU
| |
orbital period P: |
415.70 y (=151,834 d)
| |
eccentricity e: |
0.4050
| |
perihelion distance q: |
33.141 AU
| |
aphelion distance Q: |
78.257 AU
| |
inclination i: |
5.864°
| |
argument of perihelion omega: |
143.896°
| |
ascending node OMEGA: |
3.9160°
| |
mean anomaly M: |
21.439°
| |
perihelion passage TP: |
1982-07-07
| |
Epoch: |
10 APR 2007
| |
data arc: |
2000-2003 (36 obs.)
|
orbital data, secondary:
|
semimajor axis a: |
1,180 ± 80 km separation [I8816]
| |
semimajor axis/primary radius a/Rp: |
(15?)
| |
orbital period P: |
(~7 d?)
| |
eccentricity e: |
?
| |
other data, primary:
|
diameter: |
(152 km?)
| |
absolute magnitude H: |
6.82 ± 0.41 [JPL]
| |
rotation period: |
?
| |
amplitude delta M: |
?
| |
color index B-V: |
0.75 ± 0.01 [T03b]
| |
color index V-R: |
0.48 ± 0.01 [T03b]
| |
color index B-R: |
1.23 ± 0.01 [T03b]
| |
color index V-I: |
?
| |
slope parameter G: |
(0.15) assumed
| |
geometric albedo: |
(0.09) assumed
| |
mass: |
?
| |
density: |
?
| |
type: |
?
|
other data, secondary:
|
diameter: |
(115 km?)
| |
diameter ratio Ds/Dp: |
(0.75)
| |
component magnitude difference: |
0.6 [I8816]
| |
rotation period: |
?
|
|
--(60621) 2000 FE8--discovery and notes:
Primary discovered 27 March 2000 by J. Kavelaars, B. Gladman, J.-M. Petit, and M. Holman from Mauna Kea Observatory, Hawaii, USA.
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 15 January 2007; reported 3 March 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.
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