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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | .1304248540956029 | 1.4597e-07 | |
| a | 2.627089032282121 | 4.6679e-08 | au |
| q | 2.284451328550567 | 4.1483e-07 | au |
| i | 8.936145269330147 | 8.9375e-06 | deg |
| node | 188.5570808432659 | 3.6357e-05 | deg |
| peri | 336.891807296326 | 4.278e-05 | deg |
| M | 300.3351995683494 | 2.5636e-05 | deg |
| tp | 2459458.266399542138
(2021-Aug-31.76639954) | 0.0001151 | TDB |
| period | 1555.287257542622
4.26 | 4.1453e-05
1.135e-07 | d
yr |
| n | .2314684944881537 | 6.1693e-09 | deg/d |
| Q | 2.969726736013675 | 5.2768e-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 |
16.89 |
|
n/a |
MPCxxxxx |
|
|
| 305974 (2009 HS85) Discovered 2009-Apr-29 by Spacewatch at Kitt Peak |
| Reference: 20111110/Numbers.arc | Last Updated: 2011-11-14 |
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