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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 18 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | .05507194717347729 | 3.7289e-08 | |
| a | 2.25414830370966 | 9.4819e-09 | au |
| q | 2.130007967406578 | 8.4693e-08 | au |
| i | 2.681912442802177 | 4.9199e-06 | deg |
| node | 349.6998982132996 | 9.2562e-05 | deg |
| peri | 308.7768722586788 | 0.00010432 | deg |
| M | 117.4492074317831 | 4.7152e-05 | deg |
| tp | 2458597.207872127690
(2019-Apr-23.70787213) | 0.00016197 | TDB |
| period | 1236.152794971888
3.38 | 7.7997e-06
2.135e-08 | d
yr |
| n | .2912261343939985 | 1.8375e-09 | deg/d |
| Q | 2.378288640012742 | 1.0004e-08 | au |
|
| | Orbit Determination Parameters
Additional Information
|
[ show covariance matrix ]
Physical Parameter Table
| Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
| absolute magnitude |
H |
16.9 |
|
n/a |
MPO449493 |
|
|
| 78410 (2002 QU21) Discovered 2002-Aug-26 by NEAT at Palomar |
| Reference: 20040415/Numbers.arc | Last Updated: 2004-04-19 |
|
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