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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 21 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | .1201905858582952 | 5.1337e-08 | |
| a | 2.477469145484586 | 1.2533e-08 | au |
| q | 2.179700677442944 | 1.2325e-07 | au |
| i | 1.531388774597125 | 4.4582e-06 | deg |
| node | 203.3561252110902 | 0.00013261 | deg |
| peri | 343.9456294155283 | 0.00013344 | deg |
| M | 12.91777464278589 | 1.3679e-05 | deg |
| tp | 2458949.391161464672
(2020-Apr-09.89116146) | 5.422e-05 | TDB |
| period | 1424.330612780379
3.90 | 1.0808e-05
2.959e-08 | d
yr |
| n | .2527503072459127 | 1.918e-09 | deg/d |
| Q | 2.775237613526229 | 1.404e-08 | au |
|
| | Orbit Determination Parameters
Additional Information
|
[ show covariance matrix ]
Physical Parameter Table
| Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
| absolute magnitude |
H |
16.3 |
|
n/a |
MPO469856 |
|
|
| 173210 (1998 SM42) Discovered 1998-Sep-28 by Spacewatch at Kitt Peak |
| Reference: 20080122/Numbers.arc | Last Updated: 2008-01-28 |
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