2001 FL185
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: |
44.2326446 AU
| |
orbital period P: |
294.19 y (=107,451.5 d)
| |
eccentricity e: |
0.076612
| |
perihelion distance q: |
40.8438932 AU
| |
aphelion distance Q: |
47.6213960 AU
| |
inclination i: |
3.55915°
| |
argument of perihelion omega: |
70.33438°
| |
ascending node OMEGA: |
75.63451°
| |
mean anomaly M: |
19.27044°
| |
perihelion passage TP: |
1991-07-11.23
| |
Epoch: |
10 APR 2007
| |
data arc: |
2001-2003 (13 obs.)
|
orbital data, secondary:
|
semimajor axis a: |
(1,900 km separation?) [N07a]
| |
semimajor axis/primary radius a/Rp: |
(25?)
| |
orbital period P: |
(~16 d?)
| |
eccentricity e: |
?
| |
other data, primary:
|
diameter: |
(144 km?)
| |
absolute magnitude H: |
7.0 [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: |
(100 km?)
| |
diameter ratio Ds/Dp: |
(0.69)
| |
component magnitude difference: |
0.8 ± 0.6 [N07a]
| |
rotation period: |
?
|
|
--2001 FL185--discovery and notes:
Primary discovered 26 March 2001 by M. W. Buie from Kitt Peak, Arizona, United States.
Companion reported March 2007.
--Links, more technical:
--Links, less technical:
--Links to ADS abstracts:
- Noll, Keith S., Grundy, William M., Chiang, Eugene I., Margot, Jean-Luc, & Kern, Susan D. 2007, ArXiv Astrophysics e-prints Binaries in the Kuiper Belt
- Grav, T. & Marsden, B. G. 2002, Minor Planet Electronic Circulars 2001 FL185
- Wasserman, L. H., Buie, M. W., Kern, S. D., Millis, R. L., Elliot, J. L., & Marsden, B. G. 2001, Minor Planet Electronic Circulars Seven TNOs
© 2007, 2008 by Wm. Robert Johnston.
Last modified 26 November 2008.
Return to Home. Return to Astronomy and Space. Return to Asteroids with Satellites.