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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | .1733150858479642 | 4.5393e-08 | |
| a | 2.714866193803293 | 1.638e-08 | au |
| q | 2.244338926358539 | 1.2823e-07 | au |
| i | 3.96285225085278 | 4.6116e-06 | deg |
| node | 322.0707593361217 | 6.0176e-05 | deg |
| peri | 49.30164291588714 | 6.1723e-05 | deg |
| M | 12.2481250174553 | 1.2982e-05 | deg |
| tp | 2458944.911087091679
(2020-Apr-05.41108709) | 5.872e-05 | TDB |
| period | 1633.88344081037
4.47 | 1.4787e-05
4.048e-08 | d
yr |
| n | .2203339546800523 | 1.9941e-09 | deg/d |
| Q | 3.185393461248046 | 1.9219e-08 | au |
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| | 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 |
15.5 |
|
n/a |
MPO417724 |
|
|
| 136824 Nonamikeiko | Discovered 1997 Sept. 8 by H. Abe at Yatsuka. |
| Keiko Nonami (b.1960) is a member of Matsue Astronomy Club. She popularizes astronomy in Shimane prefecture and is an observing partner of the discoverer. |
| NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) |
| Reference: 20111210/MPCPages.arc | Last Updated: 2011-12-12 |
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