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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 15 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | .1560457234512603 | 5.0676e-08 | |
| a | 2.248504290109183 | 1.6888e-08 | au |
| q | 1.897634811475834 | 1.179e-07 | au |
| i | 1.636467461857366 | 6.4049e-06 | deg |
| node | 278.4573738655004 | 0.00020639 | deg |
| peri | 307.8329183036669 | 0.00020805 | deg |
| M | 252.9111599139735 | 2.6887e-05 | deg |
| tp | 2459566.836946798284
(2021-Dec-18.33694680) | 9.4661e-05 | TDB |
| period | 1231.513019857528
3.37 | 1.3875e-05
3.799e-08 | d
yr |
| n | .2923233406347973 | 3.2934e-09 | deg/d |
| Q | 2.599373768742533 | 1.9524e-08 | au |
|
| | Orbit Determination Parameters
Additional Information
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[ show covariance matrix ]
Physical Parameter Table
| Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
| absolute magnitude |
H |
18.12 |
|
n/a |
MPCxxxxx |
|
|
| 441371 (2008 EH21) Discovered 2008-Mar-02 by Spacewatch at Kitt Peak |
| Reference: | Last Updated: 2015-09-02 |
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