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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 20 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | .168491996902065 | 4.3303e-08 | |
| a | 3.055172602357211 | 2.1499e-08 | au |
| q | 2.540400469705566 | 1.3306e-07 | au |
| i | 2.53310949440459 | 5.0722e-06 | deg |
| node | 314.5218558773308 | 0.00011776 | deg |
| peri | 30.71068312926416 | 0.00011879 | deg |
| M | 125.8951745543256 | 1.5568e-05 | deg |
| tp | 2458518.383371798689
(2019-Feb-03.88337180) | 8.3306e-05 | TDB |
| period | 1950.527389328242
5.34 | 2.0588e-05
5.637e-08 | d
yr |
| n | .1845654677650967 | 1.9481e-09 | deg/d |
| Q | 3.569944735008856 | 2.5121e-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 |
15.60 |
|
n/a |
E2021B55 |
|
|
| 117867 (2127 P-L) Discovered 1960-Sep-24 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar |
| Reference: 20051019/Numbers.arc | Last Updated: 2005-10-26 |
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