Asteroids with Satellites Database--Johnston's Archive
(364171)
2006 JZ81
compiled by Wm. Robert Johnston
last updated
31 January 2015
--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: |
44.72253068 AU
| |
orbital period P: |
299.0871527 yr
(= 109241.5825 d)
| |
eccentricity e: |
0.08117341
| |
perihelion distance q: |
41.09225037 AU
| |
aphelion distance Q: |
48.352811 AU
| |
inclination i: |
3.546734398°
| |
argument of perihelion ω: |
180.2825664°
| |
ascending node Ω: |
36.37882855°
| |
mean anomaly M: |
7.464115765°
| |
perihelion passage TP: |
2008 Mar 10
| |
Epoch: |
2014 May 23
| |
data arc: |
2004-2013
(35 obs.)
| |
Earth MOID: |
40.0858 AU
| |
Jupiter Tisserand invariant TJ: |
5.949
|
| Neptune Tisserand invariant TN: | 3.099 [*D] |
orbital data, secondary:
|
semimajor axis as: |
33000
± 2000 km
[G14a]
| |
separation/primary radius as/rp: | 540 [*D] | |
separation/Hill radius as/rH: | 0.089 [*D] | |
orbital period Ps: |
1500
± 30
d [G14a]
| |
eccentricity es: |
0.85
± 0.01
[G14a]
| |
inclination is: | 28.7° ± 0.6° [G14a] | |
ascending node Ωs: | 28° ± 2° [G14a] | |
argument of pericenter ωs: | 254° ± 3° [G14a] | |
mean anomaly M: | 359° ± 2° [G14a] | |
Epoch: | 2009 Jun 25.3 | |
normalized ang. mom. αL: |
?
|
|
other data, system (combined):
|
absolute mag. H: |
6.7
[MPC]
6.9 [P11a]
| |
slope parameter G: |
(0.15) [*A]
| |
effective diameter dE: |
145
km [*D]
| |
geometric albedo: |
0.17
± 0.07/0.06
[P11a]
| |
color index U-B: |
?
| |
color index B-V: |
?
| |
taxonomic type: |
?
| |
mass m: |
1.3x1018
± 3x1017
kg [G14a]
| |
density ρ: |
(1
g/cm3) [*A]
| |
Hill radius rH: |
370000 km [*D]
|
other data, primary:
|
diameter dp: |
122
± 20/12
km [P11a]
| |
rotation period RPp: |
?
| |
amplitude in mag., rotational ΔM: |
?
| |
pole direction Β, λ: |
?
,
?
|
other data, secondary:
|
diameter ds: |
78
± 13/8
km [*D]
| |
diameter ratio ds/dp: |
0.637
± 0.006
[P11a]
| |
component mag. difference ΔM: |
0.98
± 0.02
[P11a]
| |
rotation period RPs: |
?
| |
|
|
--
(364171) 2006 JZ81
--discovery and notes:
Primary discovered
2006 May 01
from
Mauna Kea Observatory, Hawaii, USA
by
?.
Linked to prediscovery observations from 2004 Mar 26.
Permanent number assigned 2013 Jun 23.
Companion discovered
2006 May 01
using
adaptive optics telescope
observations.
Announced
2011 Aug 11.
--Links, more technical:
--Links, less technical:
--Links to ADS abstracts:
- Parker, A., Kavelaars, J., Petit, J.-M., Jones, L., Smith, P., Gladman, B., Vanlaerhoven, C., Nicholson, P., Parker, J. W., Bieryla, A., Dell'Antonio, I., Becker, A., Wittman, D., & Williams, G. V. 2011, Minor Planet Electronic Circulars 2006 BR284 and 2006 JZ81
©
2011-2014, 2015
by Wm. Robert Johnston.
Last modified
31 January 2015.
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