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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 13 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | .04782498428927728 | 5.4662e-08 | |
| a | 2.731748505275597 | 2.7745e-08 | au |
| q | 2.601102675928535 | 1.6162e-07 | au |
| i | 5.312814429634336 | 5.2191e-06 | deg |
| node | 265.979657758299 | 5.5988e-05 | deg |
| peri | 105.0123426812443 | 8.2194e-05 | deg |
| M | 287.7948947873777 | 6.0951e-05 | deg |
| tp | 2459331.269077800827
(2021-Apr-26.76907780) | 0.00028081 | TDB |
| period | 1649.147489746774
4.52 | 2.5124e-05
6.879e-08 | d
yr |
| n | .2182946050842778 | 3.3256e-09 | deg/d |
| Q | 2.862394334622659 | 2.9072e-08 | au |
|
| | Orbit Determination Parameters
Additional Information
|
[ show covariance matrix ]
Physical Parameter Table
| Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
| absolute magnitude |
H |
16.5 |
|
n/a |
MPO476836 |
|
|
| 390188 (2012 WD20) Discovered 2007-Sep-09 by Spacewatch at Kitt Peak |
| Reference: | Last Updated: 2014-03-21 |
|
[ show close-approach data ]
Alternate Designations
| 2012 WD20 = 2007 RO51 = 2011 OL14 |
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