Asteroids with Satellites Database--Johnston's Archive
(24465)
2000 SX155
compiled by Wm. Robert Johnston
last updated
23 April 2017
--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:
main belt asteroid, Hungaria
orbital data, primary (osculating elements)
[JPL]
: |
semimajor axis a: |
1.9253595763 AU
| |
orbital period P: |
2.671577481 yr
(= 975.8121043 d)
| |
eccentricity e: |
0.085087494
| |
perihelion distance q: |
1.76153555 AU
| |
aphelion distance Q: |
2.0891835978 AU
| |
inclination i: |
21.6483844°
| |
argument of perihelion ω: |
1.338162°
| |
ascending node Ω: |
35.527775°
| |
mean anomaly M: |
40.328957°
| |
perihelion passage TP: |
2016 Oct 29.685741
| |
Epoch: |
2017 Feb 16
| |
data arc: |
1984-2017
(733 obs.)
| |
Earth MOID: |
0.768949 AU
| |
Jupiter Tisserand invariant TJ: |
3.829
|
orbital data, secondary:
|
semimajor axis as: |
3.6
km
[*E]
| |
separation/primary radius as/rp: | 2.3 [*E] | |
separation/Hill radius as/rH: | 0.0084 [*E] | |
orbital period Ps: |
0.3855
± 0.00004
d [S17a]
| |
eccentricity es: |
?
| |
normalized ang. mom. αL: |
?
|
|
other data, system (combined):
|
absolute mag. H: |
15.1
[MPC]
| |
slope parameter G: |
(0.15) [*A]
| |
effective diameter dE: |
3.18
km [*E]
| |
geometric albedo: |
(0.16
) [*A]
| |
color index U-B: |
?
| |
color index B-V: |
?
| |
taxonomic type: |
?
| |
mass m: |
?
| |
density ρ: |
(1.6
g/cm3) [*A]
| |
Hill radius rH: |
430 km [*E]
|
other data, primary:
|
diameter dp: |
3.1
km [*E]
| |
rotation period RPp: |
2.66087
± 0.00005
h [S17a]
| |
amplitude in mag., rotational ΔM: |
0.08
± 0.02
[S17a]
| |
pole direction Β, λ: |
?
,
?
|
other data, secondary:
|
diameter ds: |
0.68
km [*E]
| |
diameter ratio ds/dp: |
>0.22
± 0.02
[S17a]
| |
component mag. difference ΔM: |
<3.3
± 0.2
[*D]
| |
rotation period RPs: |
?
| |
|
|
--
(24465) 2000 SX155
--discovery and notes:
Primary discovered
2000 Sep 24
from
Socorro, New Mexico, USA
by
LINEAR Program.
Alternate designation(s):
1984 UN5, 1992 WA5.
Linked to prediscovery observations from 1984 Oct 30.
Permanent number assigned 2001 Apr 08.
Companion discovered
2016 Oct 12
by R. D. Stephens, B. D. Warner
using
lightcurve
observations from Center for Solar System Studies, Landers, California, United States.
Announced
2017 Mar [S17a].
--Links, more technical:
--Links, less technical:
--Links to ADS abstracts:
©
2017
by Wm. Robert Johnston.
Last modified
23 April 2017.
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