Asteroids with Satellites Database--Johnston's Archive
(29314)
Eurydamas
compiled by Wm. Robert Johnston
last updated
21 September 2014
--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:
Jupiter trojan, L5
orbital data, primary (osculating elements)
[JPL]
: |
semimajor axis a: |
5.27991384 AU
| |
orbital period P: |
12.13244847 yr
(= 4431.37680 d)
| |
eccentricity e: |
0.072609396
| |
perihelion distance q: |
4.89654248 AU
| |
aphelion distance Q: |
5.66328519 AU
| |
inclination i: |
15.2344394°
| |
argument of perihelion ω: |
135.484993°
| |
ascending node Ω: |
143.376173°
| |
mean anomaly M: |
144.799155°
| |
perihelion passage TP: |
2009 Jul 05.6121
| |
Epoch: |
2014 May 23
| |
data arc: |
1989-2013
(446 obs.)
| |
Earth MOID: |
3.8985 AU
| |
Jupiter Tisserand invariant TJ: |
2.924
|
orbital data, secondary:
|
semimajor axis as: |
41
km
[*E]
| |
separation/primary radius as/rp: | 2.6 [*E] | |
separation/Hill radius as/rH: | 0.0042 [*D] | |
orbital period Ps: |
0.6265
± 0.0003
d [M07a]
| |
eccentricity es: |
?
| |
normalized ang. mom. αL: |
?
|
|
other data, system (combined):
|
absolute mag. H: |
11.5
[MPC]
| |
slope parameter G: |
(0.15) [*A]
| |
effective diameter dE: |
40
km [*D]
| |
geometric albedo: |
0.04
[M07a]
| |
color index U-B: |
?
| |
color index B-V: |
?
| |
taxonomic type: |
?
| |
mass m: |
1.44x1016
kg [*D]
| |
density ρ: |
0.59
± 0.06
g/cm3[M07a]
| |
Hill radius rH: |
9800 km [*D]
|
other data, primary:
|
diameter dp: |
32
km [M07a]
| |
rotation period RPp: |
15.035
± 0.007
h [M07a]
| |
amplitude in mag., rotational ΔM: |
1.05
± 0.03
[M07a]
| |
pole direction Β, λ: |
?
,
?
|
other data, secondary:
|
diameter ds: |
24
km [M07a]
| |
diameter ratio ds/dp: |
0.737
± 0.148
[M07a]
| |
component mag. difference ΔM: |
0.7
[* D]
| |
rotation period RPs: |
?
| |
|
|
--
(29314) Eurydamas
--discovery and notes:
Primary discovered
1994 Feb 08
from
European Southern Observatory, La Silla, Chile
by
E. W. Elst.
Alternate designation(s):
1994 CR18,
2000 TR49.
Linked to prediscovery observations from 1989 Dec 21.
Permanent number assigned 2001 Oct 02.
Named 2012 Apr 06 for the Trojan priest Eurydamas [MPC79103].
Companion discovered
2005 Apr 14
using
lightcurve
observations.
Announced
2007 Jun 01.
--Links, more technical:
--Links, less technical:
--Links to ADS abstracts:
- Noll, Keith S., Ryan, E. L., Grundy, W. M., & Benecchi, S. D. 2013, AAS/Division for Planetary Sciences Meeting Abstracts Ultra-Slow Rotating Outer Main Belt and Trojan Asteroids: Search for Binaries
- Mann, Rita K., Jewitt, David, & Lacerda, Pedro 2007, The Astronomical Journal Fraction of Contact Binary Trojan Asteroids
©
2009-2012, 2014
by Wm. Robert Johnston.
Last modified
21 September 2014.
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