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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 13 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | .2870439296720145 | 7.7027e-08 | |
| a | 2.623515312885062 | 1.7357e-08 | au |
| q | 1.870451167919829 | 2.0174e-07 | au |
| i | 29.20106811256433 | 1.2245e-05 | deg |
| node | 256.1751292761587 | 1.5644e-05 | deg |
| peri | 112.2849253325907 | 2.5949e-05 | deg |
| M | 336.9379202136952 | 1.6507e-05 | deg |
| tp | 2459099.930540801203
(2020-Sep-07.43054080) | 7.1286e-05 | TDB |
| period | 1552.114771092308
4.25 | 1.5403e-05
4.217e-08 | d
yr |
| n | .2319416107010233 | 2.3018e-09 | deg/d |
| Q | 3.376579457850294 | 2.234e-08 | au |
|
| | Orbit Determination Parameters
Additional Information
|
[ show covariance matrix ]
Physical Parameter Table
| Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
| absolute magnitude |
H |
16.1 |
|
n/a |
MPO434613 |
|
|
| 437854 (1999 XW16) Discovered 1999-Dec-07 by LINEAR at Socorro |
| Reference: | Last Updated: 2015-07-06 |
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