Asteroids with Satellites Database--Johnston's Archive
(172376)
2002 YE25
compiled by Wm. Robert Johnston
last updated
21 July 2022
--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: |
3.150101976 AU
| |
orbital period P: |
5.591072475 yr
(= 2042.139222 d)
| |
eccentricity e: |
0.059985428
| |
perihelion distance q: |
2.96114176 AU
| |
aphelion distance Q: |
3.339062192 AU
| |
inclination i: |
12.1195767°
| |
argument of perihelion ω: |
127.959484°
| |
ascending node Ω: |
279.826413°
| |
mean anomaly M: |
230.753646°
| |
perihelion passage TP: |
2024 Aug 11.1640
| |
Epoch: |
2022 Aug 09
| |
data arc: |
2001-2022
(571 obs.)
| |
Earth MOID: |
1.99119 AU
| |
Jupiter Tisserand invariant TJ: |
3.171
|
orbital data, secondary:
|
semimajor axis as: |
15.3
km
(separation)
[N22a]
| |
separation/primary radius as/rp: | 8.1 [*E] | |
separation/Hill radius as/rH: | 0.015 [*E] | |
orbital period Ps: |
1.9
d [*E]
| |
eccentricity es: |
?
| |
normalized ang. mom. αL: |
?
|
|
other data, system (combined):
|
absolute mag. H: |
14.85
[MPC]
| |
slope parameter G: |
(0.15) [*A]
| |
effective diameter dE: |
5.62
± 0.26
km [*M]
| |
geometric albedo: |
0.089
± 0.008
[*M]
| |
color index U-B: |
?
| |
color index B-V: |
?
| |
taxonomic type: |
?
| |
mass m: |
?
| |
density ρ: |
(1.6
g/cm3) [*A]
| |
Hill radius rH: |
1000 km [*E]
|
other data, primary:
|
diameter dp: |
>3.8
km [N22a]
| |
rotation period RPp: |
?
| |
amplitude in mag., rotational ΔM: |
?
| |
pole direction Β, λ: |
?
,
?
|
other data, secondary:
|
diameter ds: |
>3.3
km [N22a]
| |
diameter ratio ds/dp: |
0.87
[*D]
| |
component mag. difference ΔM: |
0.3
[*D]
| |
rotation period RPs: |
?
| |
|
|
--
(172376) 2002 YE25
--discovery and notes:
Primary discovered
2002 Dec 31
from
Socorro, New Mexico, USA
by
LINEAR Program.
Alternate designation(s):
2007 VH25.
Linked to prediscovery observations from 2001 Aug 22.
Permanent number assigned 2007 Dec 24.
Companion discovered
2022 May 16
by P. Nosworthy, D. Gault, D. Herald
using
stellar occultation
observations from Hazelbrook, New South Wales, Australia; Hawkesbury Height, New South Wales, Australia.
Announced
2022 Jul 18 [N22a].
--Links, more technical:
--Links, less technical:
--Links to ADS abstracts:
©
2022
by Wm. Robert Johnston.
Last modified
21 July 2022.
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