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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 17 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | .1342428826332225 | 5.3201e-08 | |
| a | 3.191569952152067 | 6.0186e-08 | au |
| q | 2.763124401649597 | 1.7889e-07 | au |
| i | 12.8039772169292 | 8.1158e-06 | deg |
| node | 160.0451957895901 | 2.6849e-05 | deg |
| peri | 127.163860876922 | 4.1713e-05 | deg |
| M | 262.4879926402797 | 3.2257e-05 | deg |
| tp | 2459564.605812113368
(2021-Dec-16.10581211) | 0.00019361 | TDB |
| period | 2082.595752661112
5.70 | 5.891e-05
1.613e-07 | d
yr |
| n | .1728611995582902 | 4.8897e-09 | deg/d |
| Q | 3.620015502654536 | 6.8265e-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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