2000 UG11
compiled by Wm. Robert Johnston
last updated 1 September 2005
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: |
1.92888823273491 AU
| |
orbital period P: |
2.679 y (=978.5 d)
| |
eccentricity e: |
0.571683234784636
| |
perihelion distance q: |
0.826175168306995 AU
| |
aphelion distance Q: |
3.0316013 AU
| |
inclination i: |
8.93258336898969°
| |
argument of perihelion omega: |
240.369990066888°
| |
ascending node OMEGA: |
224.382092544636°
| |
mean anomaly M: |
193.184976843928°
| |
perihelion passage TP: |
2006-04-28.4106132
| |
Epoch: |
30 JAN 2005
| |
data arc: |
19 days (398 obs.)
|
orbital data, secondary:
|
semimajor axis a: |
0.337 ± 0.013 km [A3a]
| |
semimajor axis/primary radius a/Rp: |
(2.9)
| |
orbital period P: |
0.770 ± 0.003 d [A3a]
| |
eccentricity e: |
0.09 ± 0.04 [A3a]
| |
other data, primary:
|
diameter: |
0.23 ± 0.06 km [A3a]
| |
absolute magnitude H: |
20.29 [JPL]
| |
rotation period: |
4.44 h? [OOa]
| |
amplitude delta M: |
0.10 [H03a]
| |
color index B-V: |
?
| |
color index V-R: |
?
| |
color index R-I: |
?
| |
slope parameter G: |
(0.15) [a]
| |
geometric albedo: |
(0.16) [a]
| |
mass: |
(5.1 ± 0.5)x109 kg [A3a]
| |
density: |
0.8 ± 0.6 g/cm2 [A3a]
| |
type: |
QR [A3a]
|
other data, secondary:
|
diameter: |
0.10 km [A3a]
| |
diameter ratio Ds/Dp: |
(0.43)
| |
component magnitude difference: |
?
| |
rotation period: |
?
|
|
--2000 UG11--discovery and notes:
Primary discovered 25 October 2000 by M. Blythe, F. Shelly, M. Bexpalko, M. Elowitz, R. Huber, L. Manguso of Lincoln Laboratory ETS, New Mexico.
Companion discovered by radar observations 3-7 November 2000 from Arecibo Observatory, Puerto Rico, by M. C. Nolan, J.-L. Margot, E. S. Howell, L. A. M. Benner, S. J. Ostro, R. F. Jurgens, J. D. Giorgini, and D. B. Campbell; announced 10 November 2000.
See more information and links at
Asteroid/Comet Connection Catchall Catalog page
--Links, more technical:
--Links, less technical:
--Links to ADS abstracts:
- Nolan, M. C., Margot, J.-L., Howell, E. S., Benner, L. A. M., Ostro, S. J., Jurgens, R. F., Giorgini, J. D., & Campbell, D. B. 2001, 32nd Annual Lunar and Planetary Science Conference, March 12-16, 2001, Houston, Texas, abstract no.2055 Radar Observations of Near-Earth Asteroids 2000 UG11 and 2000 UK11
- Sugie, A., Griffin, I. P., Brady, N., Blythe, M., Shelly, F., Bezpalko, M., Elowitz, M., Huber, R., Manguso, L., Stuart, J., Sayer, R., Evans, J. B., Viggh, H., Robinson, L., Ikari, Y., Yeung, B., & Spahr, T. B. 2000, Minor Planet Electronic Circ., 2000-U30 (2000). 2000 UG11
© 2001-2004, 2005 by Wm. Robert Johnston.
Last modified 1 September 2005.
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