| 12916 Eteoneus (1998 TL15) |
| Classification: Jupiter Trojan SPK-ID: 2012916 |
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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | .02072567135758666 | 5.1545e-08 | |
| a | 5.144425744479324 | 9.8982e-08 | au |
| q | 5.037804067175738 | 3.263e-07 | au |
| i | 26.4129646133467 | 5.409e-06 | deg |
| node | 219.3414975202826 | 1.0359e-05 | deg |
| peri | 213.70525412635 | 0.00014843 | deg |
| M | 261.7017626351805 | 0.00015159 | deg |
| tp | 2460164.216014294788
(2023-Aug-07.71601429) | 0.0018128 | TDB |
| period | 4261.905161038621
11.67 | 0.000123
3.368e-07 | d
yr |
| n | .08446926583234161 | 2.4379e-09 | deg/d |
| Q | 5.251047421782912 | 1.0103e-07 | au |
|
| | Orbit Determination Parameters
Additional Information
|
[ show covariance matrix ]
Physical Parameter Table
| Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
| absolute magnitude |
H |
11.4 |
|
n/a |
MPO416851 |
|
| diameter |
diameter |
22.289 |
km |
1.618 |
urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2012ApJ...759...49G) |
|
| geometric albedo |
albedo |
0.098 |
|
0.017 |
urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2012ApJ...759...49G) |
|
|
| 12916 Eteoneus | Discovered 1998 Oct. 13 by the OCA-DLR Asteroid Survey at Caussols. |
| Eteoneus, the son of Boethous, was King Menelaus of Sparta's weapon-carrier during the Trojan War. He helped Odysseus in his attempts to return home. |
| NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) |
| Reference: 20081113/MPCPages.arc | Last Updated: 2008-11-17 |
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