Asteroids with Satellites Database--Johnston's Archive
(134717)
2000 AO1
compiled by Wm. Robert Johnston
last updated
20 June 2026
--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
orbital data, primary (osculating elements)
[JPL]
: |
semimajor axis a: |
2.6097885122 AU
| |
orbital period P: |
4.2161511781 yr
(= 1539.9492178 d)
| |
eccentricity e: |
0.1311742436
| |
perihelion distance q: |
2.2674514783 AU
| |
aphelion distance Q: |
2.9521255461 AU
| |
inclination i: |
28.024147561°
| |
argument of perihelion ω: |
37.19391991°
| |
ascending node Ω: |
92.82233284°
| |
mean anomaly M: |
99.40747865°
| |
perihelion passage TP: |
2025 Apr 09.7709195
| |
Epoch: |
2026 Jun 09
| |
data arc: |
1989-2026
(2058 obs.)
| |
Earth MOID: |
1.31631 AU
| |
Jupiter Tisserand invariant TJ: |
3.233
|
orbital data, secondary:
|
semimajor axis as: |
47.9
km
(separation)
[P26f]
| |
separation/primary radius as/rp: | 12 [*E] | |
separation/Hill radius as/rH: | 0.034 [*E] | |
orbital period Ps: |
4.6
d [*E]
| |
eccentricity es: |
?
| |
normalized ang. mom. αL: |
?
|
|
other data, system (combined):
|
absolute mag. H: |
14.67
[MPC]
| |
slope parameter G: |
(0.15) [*A]
| |
effective diameter dE: |
7.87
± 0.2
km [M19a]
| |
geometric albedo: |
0.054
± 0.01
[M19a]
| |
color index U-B: |
?
| |
color index B-V: |
?
| |
taxonomic type: |
?
| |
mass m: |
?
| |
density ρ: |
(1.6
g/cm3) [*A]
| |
Hill radius rH: |
1400 km [*E]
|
other data, primary:
|
diameter dp: |
7.87
± 0.2
km [M19a]
| |
dimensions : | 8.7 x 7.2 km [*D] | |
axial ratios a/b, b/c: | 1.21, ? [P26f] | |
rotation period RPp: |
?
| |
amplitude in mag., rotational ΔM: |
?
| |
pole direction Β, λ: |
?
,
?
|
other data, secondary:
|
diameter ds: |
1.6
± 0.4
km [P26f]
| |
diameter ratio ds/dp: |
0.20
± 0.05
[*D]
| |
component mag. difference ΔM: |
3.5
[*D]
| |
rotation period RPs: |
?
| |
|
|
--
(134717) 2000 AO1
--discovery and notes:
Primary discovered
2000 Jan 02
from
Socorro, New Mexico, USA
by
LINEAR Program.
Alternate designation(s):
1989 RP3.
Linked to prediscovery observations from 1989 Sep 03.
Permanent number assigned 2006 Sep 07.
Companion discovered 2026 May 10
by W. Pieczonka, D. Blazewicz, D. Herald, D. Gault, C. Weber, and International Occultation Timing Association European Section
using
stellar occultation
observations from Nowa Wies, Poland; Klaj, Poland.
Announced
2026 Jun 18 [P26f].
--Links, more technical:
--Links, less technical:
--Links to ADS abstracts:
©
2026
by Wm. Robert Johnston.
Last modified
20 June 2026.
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