2002 XH91
compiled by Wm. Robert Johnston
last updated 6 December 2009
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: |
43.7817528 AU
| |
orbital period P: |
289.70 y (=105,813 d)
| |
eccentricity e: |
0.0918850
| |
perihelion distance q: |
39.7588664 AU
| |
aphelion distance Q: |
47.8046392 AU
| |
inclination i: |
4.99587°
| |
argument of perihelion omega: |
187.45818°
| |
ascending node OMEGA: |
80.49737°
| |
mean anomaly M: |
203.02038°
| |
perihelion passage TP: |
2135-OCT-16.1
| |
Epoch: |
18 JUN 2009
| |
data arc: |
2002-2008 (19 obs.)
| orbital data, secondary:
|
semimajor axis a: |
(19,900±300 km separation) [I9046]
| |
semimajor axis/primary radius a/Rp: |
(140?)
| |
orbital period P: |
(200 d?)
| |
eccentricity e: |
?
| |
other data, primary:
|
diameter: |
(284 km?)
| |
absolute magnitude H: |
5.6 [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: |
(0.09) assumed
| |
mass: |
?
| |
density: |
?
| |
type: |
?
|
other data, secondary:
|
diameter: |
(176 km?)
| |
diameter ratio Ds/Dp: |
(0.62)
| |
component magnitude difference: |
1.04 [I9046]
| |
rotation period: |
?
|
|
--2002 VF130--discovery and notes:
Primary discovered 4 December 2002 by M. W. Buie from Kitt Peak Observatory.
Companion reported 27 May 2009 by K. S. Noll et al., discovered from Hubble Space Telescope observations obtained 8 November 2008.
See more information and links at
Asteroid/Comet Connection Catchall Catalog page
--Links, more technical:
--Links, less technical:
--Links to ADS abstracts:
© 2009 by Wm. Robert Johnston.
Last modified 6 December 2009.
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