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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 19 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | .175229811383974 | 3.6113e-08 | |
| a | 2.660482224461935 | 1.2128e-08 | au |
| q | 2.194286426079055 | 9.6027e-08 | au |
| i | 3.134653303255371 | 4.7098e-06 | deg |
| node | 313.6815266482731 | 8.0568e-05 | deg |
| peri | 159.2832886626674 | 8.2065e-05 | deg |
| M | 44.85380713674678 | 1.4431e-05 | deg |
| tp | 2458803.014242638219
(2019-Nov-15.51424264) | 6.347e-05 | TDB |
| period | 1585.035411453316
4.34 | 1.0838e-05
2.967e-08 | d
yr |
| n | .2271242632175118 | 1.553e-09 | deg/d |
| Q | 3.126678022844816 | 1.4253e-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 |
15.9 |
|
n/a |
MPO453933 |
|
|
| 146720 (2001 WC87) Discovered 2001-Nov-19 by LINEAR at Socorro |
| Reference: 20070106/Numbers.arc | Last Updated: 2007-01-09 |
|
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