Asteroids with Satellites Database--Johnston's Archive
2001 RZ143
compiled by Wm. Robert Johnston
last updated
20 September 2014
--Orbital and physical data--
(See this page for definitions of quantities; source codes in brackets, see this link for full references; *A, *D, and *E indicate assumed, derived, and estimated values, respectively.)
dynamical type, primary:
TNO, Cubewano
orbital data, primary (osculating elements)
[JPL]
: |
semimajor axis a: |
44.125 AU
| |
orbital period P: |
293.110 yr
(= 107058.5 d)
| |
eccentricity e: |
0.06517
| |
perihelion distance q: |
41.2489 AU
| |
aphelion distance Q: |
47.000 AU
| |
inclination i: |
2.12632°
| |
argument of perihelion ω: |
34.41°
| |
ascending node Ω: |
8.3809°
| |
mean anomaly M: |
354.16°
| |
perihelion passage TP: |
2019 Feb 23
| |
Epoch: |
2014 May 23
| |
data arc: |
2001-2012
(31 obs.)
| |
Earth MOID: |
40.2569 AU
| |
Jupiter Tisserand invariant TJ: |
5.926
|
| Neptune Tisserand invariant TN: | 3.10 [*D] |
orbital data, secondary:
|
semimajor axis as: |
1560
± 30 km
(separation)
[G12b]
| |
separation/primary radius as/rp: | 29 [*E] | |
separation/Hill radius as/rH: | 0.0045 [*E] | |
orbital period Ps: |
17
d [*E]
| |
eccentricity es: |
?
| |
normalized ang. mom. αL: |
?
|
|
other data, system (combined):
|
absolute mag. H: |
6.5
[MPC]
6.69 ± 0.13 [V12a]
| |
slope parameter G: |
(0.15) [*A]
| |
effective diameter dE: |
140
± 39/33
km [V12a]
| |
geometric albedo: |
0.191
± 0.066/0.045
[V12a]
| |
color index U-B: |
?
| |
color index B-V: |
1.08
[S09b]
| |
color index V-R: | 0.51 ± 0.13 [S09b] | |
color index B-R: | 1.59 ± 0.12 [S09b] | |
color index V-I: | 1 ± 0.12 [S09b] | |
taxonomic type: |
?
| |
mass m: |
?
| |
density ρ: |
(1
g/cm3) [*A]
| |
Hill radius rH: |
340000 km [*E]
|
other data, primary:
|
diameter dp: |
108
km [*D]
| |
rotation period RPp: |
?
| |
amplitude in mag., rotational ΔM: |
?
| |
pole direction Β, λ: |
?
,
?
|
other data, secondary:
|
diameter ds: |
90
km [*D]
| |
diameter ratio ds/dp: |
0.832
[G12b]
| |
component mag. difference ΔM: |
0.1
± 0.3
[N08c]
| |
rotation period RPs: |
?
| |
|
|
--
2001 RZ143
--discovery and notes:
Primary discovered
2001 Sep 12
from
Kitt Peak Observatory, Arizona, USA
by
M. W. Buie.
Companion discovered
2005 Sep 04
using
Hubble Space Telescope
observations from Hubble Space Telescope.
Announced
2007 Mar 14.
--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
©
2007-2008, 2014
by Wm. Robert Johnston.
Last modified
20 September 2014.
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