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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.
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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | .02498322150019694 | 4.3172e-08 | |
| a | 2.903953610019089 | 1.5657e-08 | au |
| q | 2.831403493753686 | 1.2615e-07 | au |
| i | 1.001472245445237 | 4.1859e-06 | deg |
| node | 277.8850546899762 | 0.0002687 | deg |
| peri | 200.2113359971954 | 0.00028299 | deg |
| M | 194.4790774698385 | 8.9652e-05 | deg |
| tp | 2459431.561829671549
(2021-Aug-05.06182967) | 0.00045242 | TDB |
| period | 1807.519279789177
4.95 | 1.4618e-05
4.002e-08 | d
yr |
| n | .1991680000458912 | 1.6108e-09 | deg/d |
| Q | 2.976503726284493 | 1.6048e-08 | au |
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| | Orbit Determination Parameters
Additional Information
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Physical Parameter Table
| Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
| absolute magnitude |
H |
14.4 |
|
n/a |
MPO309247 |
|
|
| 12131 Echternach | Discovered 1960 Sept. 24 by C. J. van Houten and I. van Houten-Groeneveld at Leiden on Palomar Schmidt plates taken by T. Gehrels. |
| As assistant editor of the Dutch astronomical magazine Zenit, Dutch science writer Eddy Echternach (b. 1961) has been popularizing astronomy since the late 1980s. He is co-author of numerous books on astronomy and astronomical exercises for use in primary and high schools. The name was suggested by C. E. Koppeschaar. |
| NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) |
| Reference: 20070926/MPCPages.arc | Last Updated: 2007-09-30 |
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