1998 WV24
compiled by Wm. Robert Johnston
last updated 29 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: |
38.8758153 AU
| |
orbital period P: |
242.40 y (=88,535.6 d)
| |
eccentricity e: |
0.0337714
| |
perihelion distance q: |
37.5629246 AU
| |
aphelion distance Q: |
40.1887060 AU
| |
inclination i: |
1.51665°
| |
argument of perihelion omega: |
159.87209°
| |
ascending node OMEGA: |
183.65809°
| |
mean anomaly M: |
71.91789°
| |
perihelion passage TP: |
1960-06-28.1
| |
Epoch: |
30 NOV 2008
| |
data arc: |
1998-2000 (12 obs.)
|
orbital data, secondary:
|
semimajor axis a: |
(1,400 km separation) [I8998]
| |
semimajor axis/primary radius a/Rp: |
(25?)
| |
orbital period P: |
(14 d?)
| |
eccentricity e: |
?
| |
other data, primary:
|
diameter: |
(110 km?)
| |
absolute magnitude H: |
7.4 [JPL]
| |
rotation period: |
?
| |
amplitude delta M: |
?
| |
color index B-V: |
0.77 ± 0.01 [T00a]
| |
color index V-R: |
0.50 ± 0.03 [T00a]
| |
color index B-R: |
1.27 ± 0.03 [T00a]
| |
color index R-I: |
?
| |
slope parameter G: |
(0.15) assumed
| |
geometric albedo: |
(0.09) assumed
| |
mass: |
?
| |
density: |
?
| |
type: |
?
|
other data, secondary:
|
diameter: |
(80 km?)
| |
diameter ratio Ds/Dp: |
(>0.75)
| |
component magnitude difference: |
<0.3 [I8998]
| |
rotation period: |
?
|
|
--1998 WV24--discovery and notes:
Primary discovered 18 November 1998 by M. W. Buie from Kitt Peak Observatory, Arizona, USA.
Companion discovered by Benecchi et al. from Hubble Space Telescope observations, reported 29 October 2008.
--Links, more technical:
--Links, less technical:
--Links to ADS abstracts:
- Romanishin, W., Tegler, S., Sheppard, S., & Marsden, B. G. 1999, Minor Planet Electronic Circulars 1998 WV24
- Millis, R. L., Buie, M. W., Wagner, R. M., Elliot, J. L., & Marsden, B. G. 1998, Minor Planet Electronic Circulars 1998 WV24
© 2008 by Wm. Robert Johnston.
Last modified 29 November 2008.
Return to Home. Return to Astronomy and Space. Return to Asteroids with Satellites.