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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 23 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | .1712546480238552 | 3.5916e-08 | |
| a | 2.209595054151728 | 8.0236e-09 | au |
| q | 1.831191630877723 | 7.9423e-08 | au |
| i | 6.876326875369791 | 5.3887e-06 | deg |
| node | 63.29341655623826 | 3.4173e-05 | deg |
| peri | 219.5272677770432 | 3.8663e-05 | deg |
| M | 169.2751239019083 | 2.0948e-05 | deg |
| tp | 2458436.397401659382
(2018-Nov-13.89740166) | 6.8161e-05 | TDB |
| period | 1199.68564028523
3.28 | 6.5346e-06
1.789e-08 | d
yr |
| n | .3000786105220103 | 1.6345e-09 | deg/d |
| Q | 2.587998477425734 | 9.3977e-09 | 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 |
15.7 |
|
n/a |
MPO502609 |
|
|
| 74861 (1999 TW90) Discovered 1999-Oct-02 by LINEAR at Socorro |
| Reference: 20040415/Numbers.arc | Last Updated: 2004-04-19 |
|
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