Asteroids with Satellites Database--Johnston's Archive
(25687)
2000 AY117
compiled by Wm. Robert Johnston
last updated
13 July 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: |
2.58681767777 AU
| |
orbital period P: |
4.1606092714 yr (= 1519.66253637 d)
| |
eccentricity e: |
0.15704216911
| |
perihelion distance q: |
2.1805782186 AU
| |
aphelion distance Q: |
2.99305713698 AU
| |
inclination i: |
14.587205269°
| |
argument of perihelion ω: |
115.91373383°
| |
ascending node Ω: |
136.9735253°
| |
mean anomaly M: |
1.36391264°
| |
perihelion passage TP: |
2026 Jun 03.2425363
| |
Epoch: |
2026 Jun 09
| |
data arc: |
1989-2026
(4306 obs.)
| |
Earth MOID: |
1.20832 AU
| |
Jupiter Tisserand invariant TJ: |
3.359
|
orbital data, secondary:
|
semimajor axis as: |
?
| |
orbital period Ps: |
?
| |
eccentricity es: |
?
| |
normalized ang. mom. αL: |
?
|
|
other data, system (combined):
|
absolute mag. H: |
13.31
[MPC]
| |
slope parameter G: |
(0.15) [*A]
| |
effective diameter dE: |
6.01
± 0.19
km [M19a]
| |
geometric albedo: |
0.338
± 0.045
[M19a]
| |
color index U-B: |
?
| |
color index B-V: |
?
| |
color index J-H: | 0.639 ± 0.154 [S10b] | |
taxonomic type: |
?
| |
mass m: |
?
| |
density ρ: |
(1.6
g/cm3) [*A]
| |
Hill radius rH: |
1020 km [*E]
|
other data, primary:
|
diameter dp: |
6.01
± 0.19
km [M19a]
| |
dimensions : | ~7.0 x ~5.2 km [*E] | |
axial ratios a/b, b/c: | 1.3, ? [*E] | |
rotation period RPp: |
2.75837
± 0.00002
h [P26a]
| |
amplitude in mag., rotational ΔM: |
0.32
[P26a]
| |
pole direction Β, λ: |
?
,
?
|
other data, secondary:
|
diameter ds: |
?
| |
diameter ratio ds/dp: |
?
| |
component mag. difference ΔM: |
?
| |
rotation period RPs: |
5.756
± 0.001
h [P26a]
| |
|
|
--
(25687) 2000 AY117
--discovery and notes:
Primary discovered
2000 Jan 05
from
Socorro, New Mexico, USA
by
LINEAR Program.
Alternate designation(s):
1992 CD5.
Linked to prediscovery observations from 1989 Aug 30.
Permanent number assigned 2001 Jun 06.
Companion discovered
2026 May 20
by D. Pray, R. Durkee, et al.
using
lightcurve
observations.
Announced
2026 Jul 13 [P26a].
--Links, more technical:
--Links, less technical:
--Links to ADS abstracts:
©
2026
by Wm. Robert Johnston.
Last modified
13 July 2026.
Return to Home. Return to Astronomy and Space. Return to Asteroids with Satellites.