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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 21 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | .3262008265040193 | 4.9903e-08 | |
| a | 2.309432655528556 | 5.5689e-09 | au |
| q | 1.556093814539769 | 1.1511e-07 | au |
| i | 7.080546270859223 | 5.5477e-06 | deg |
| node | 315.7532281001642 | 3.1993e-05 | deg |
| peri | 344.2744575408519 | 3.2679e-05 | deg |
| M | 92.55003473521342 | 7.7971e-06 | deg |
| tp | 2458870.943056810770
(2020-Jan-22.44305681) | 2.6943e-05 | TDB |
| period | 1281.906591256874
3.51 | 4.6367e-06
1.269e-08 | d
yr |
| n | .2808316943335394 | 1.0158e-09 | deg/d |
| Q | 3.062771496517344 | 7.3855e-09 | au |
|
| | Orbit Determination Parameters
Additional Information
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Physical Parameter Table
| Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
| absolute magnitude |
H |
16.1 |
|
n/a |
MPO474288 |
|
|
| 42531 McKenna | Discovered 1995 June 5 by D. J. Asher at Siding Spring. |
| Martin McKenna (b. 1978) was named 2005 Astronomer of the Year by the Irish Federation of Astronomical Societies. An avid visual comet hunter and all-round observer, he also undertakes a photographic search for novae. The name was suggested by J. C. McConnell. |
| NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) |
| Reference: 20060413/MPCPages.arc | Last Updated: 2006-04-17 |
|
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Alternate Designations
| 1995 LJ = 1988 PP1 = 1988 QF1 |
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