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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.
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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | .1342428775979305 | 5.4026e-08 | |
| a | 3.191569941704032 | 6.3267e-08 | au |
| q | 2.763124408674623 | 1.7937e-07 | au |
| i | 12.80397762572853 | 8.1277e-06 | deg |
| node | 160.0452032766739 | 2.8506e-05 | deg |
| peri | 127.1638582453159 | 4.3626e-05 | deg |
| M | 262.4879902525764 | 3.2574e-05 | deg |
| tp | 2459564.605823156189
(2021-Dec-16.10582316) | 0.00019475 | TDB |
| period | 2082.595742434624
5.70 | 6.1926e-05
1.695e-07 | d
yr |
| n | .1728612004071169 | 5.14e-09 | deg/d |
| Q | 3.62001547473344 | 7.176e-08 | au |
|
| | Orbit Determination Parameters
Additional Information
|
[ show covariance matrix ]
Physical Parameter Table
| Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
| absolute magnitude |
H |
16.0 |
|
n/a |
MPO423457 |
|
|
| 392149 (2009 HQ40) Discovered 2009-Apr-20 by Spacewatch at Kitt Peak |
| Reference: | Last Updated: 2014-04-17 |
|
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