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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 |
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| | 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 |
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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