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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | .2228833010202022 | 6.0043e-08 | |
| a | 2.616102434646081 | 2.1633e-08 | au |
| q | 2.033016888205174 | 1.6669e-07 | au |
| i | 5.083396521781386 | 5.7299e-06 | deg |
| node | 153.3095495502554 | 5.4101e-05 | deg |
| peri | 189.4479584777009 | 5.4981e-05 | deg |
| M | 259.3802536054807 | 1.2727e-05 | deg |
| tp | 2459632.477634505992
(2022-Feb-21.97763451) | 5.7806e-05 | TDB |
| period | 1545.541049292762
4.23 | 1.917e-05
5.248e-08 | d
yr |
| n | .2329281387671557 | 2.8892e-09 | deg/d |
| Q | 3.199187981086987 | 2.6455e-08 | au |
|
| | Orbit Determination Parameters
Additional Information
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Physical Parameter Table
| Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
| absolute magnitude |
H |
15.7 |
|
n/a |
MPO333805 |
|
|
| 129342 Ependes | Discovered 2005 Nov. 5 by P. Kocher at the Observatoire Naef, Marly. |
| Ependes is a small village in a green landscape some 6 km from Fribourg, Switzerland. This municipality made property available for the the R. A. Naef Observatory. Its goal is to introduce astronomy to the people, especially to young people. |
| NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) |
| Reference: 20060613/MPCPages.arc | Last Updated: 2008-05-22 |
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