(317) Roxane and S/2009 (317) 1
compiled by Wm. Robert Johnston
last updated 11 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: |
2.2861683 AU
| |
orbital period P: |
3.46 y (=1,262.5853 d)
| |
eccentricity e: |
0.0852138
| |
perihelion distance q: |
2.0913552 AU
| |
aphelion distance Q: |
2.4809814 AU
| |
inclination i: |
1.76396°
| |
argument of perihelion omega: |
186.27713°
| |
ascending node OMEGA: |
151.43467°
| |
mean anomaly M: |
75.91905°
| |
perihelion passage TP: |
2009-04-12.7381
| |
Epoch: |
04 JAN 2010
| |
data arc: |
1891-2003 (647 obs.)
| orbital data, secondary:
|
semimajor axis a: |
(245 km separation) [C2054]
| |
semimajor axis/primary radius a/Rp: |
(25?)
| |
orbital period P: |
(13 d?)
| |
eccentricity e: |
?
| |
other data, primary:
|
diameter: |
18.7 ± 1.4 km [IR]
| |
absolute magnitude H: |
10.03 [JPL]
| |
rotation period: |
8.169 h [JPL]
| |
amplitude delta M: |
?
| |
color index U-B: |
0.238 ± 0.004 [JPL]
| |
color index B-V: |
0.694 ± 0.007 [JPL]
| |
color index V-R: |
?
| |
color index R-I: |
?
| |
slope parameter G: |
(0.15) assumed
| |
geometric albedo: |
0.493 ± 0.083 [IR]
| |
mass: |
?
| |
density: |
?
| |
type: |
E; Xe [JPL]
|
other data, secondary:
|
diameter: |
5 km [C2054]
| |
diameter ratio Ds/Dp: |
(0.25)
| |
component magnitude difference: |
2.7 [C2054]
| |
rotation period: |
?
|
|
--(317) Roxane and S/2009 (317) 1--discovery and notes:
Primary discovered 11 September 1891 by A. Charlois from Nice, France.
Secondary discovered 24 November 2009 by W. J. Merline, P. M. Tamblyn, J. D. Drummond, J. C. Christou, A. R. Conrad, B. Carry, C. R. Chapman, C. Dumas, D. D. Durda, W. M. Owen, and B. L. Enke, using the Gemini-North adaptive optics telescope; reported 26 November 2009.
See more information and links at Asteroid/Comet Connection Catchall Catalog page
--Links, more technical:
--Links, less technical:
--Links to ADS abstracts:
- Fornasier, S., Migliorini, A., Dotto, E., & Barucci, M. A. 2008, Icarus Visible and near infrared spectroscopic investigation of E-type asteroids,
including 2867 Steins, a target of the Rosetta mission
- Bus, S. & Binzel, R. P. 2004, NASA Planetary Data System 317 Roxane CCD Spectrum
- Millosevich, Elia 1904, Astronomische Nachrichten Pianeta (317) Roxane
- Bidschof, Friedrich 1893, Astronomische Nachrichten Elemente des
Planeten (317) Roxane.
© 2009 by Wm. Robert Johnston.
Last modified 11 December 2009.
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