| 3838 Epona (1986 WA) |
| Classification: Apollo [NEO] SPK-ID: 2003838 |
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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 120 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | .7024587246135878 | 8.2579e-08 | |
| a | 1.505036467634238 | 5.4469e-09 | au |
| q | .4478104700829519 | 1.2472e-07 | au |
| i | 29.20289835155993 | 9.654e-06 | deg |
| node | 235.4947724187411 | 1.0667e-05 | deg |
| peri | 49.70768561043524 | 1.1077e-05 | deg |
| M | 198.3603574543672 | 1.3021e-05 | deg |
| tp | 2459503.305906520587
(2021-Oct-15.80590652) | 2.5742e-05 | TDB |
| period | 674.4021740621976
1.85 | 3.6611e-06
1.002e-08 | d
yr |
| n | .5338061083516 | 2.8978e-09 | deg/d |
| Q | 2.562262465185525 | 9.2731e-09 | 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 |
15.58 |
|
n/a |
E2021B10 |
|
| rotation period |
rot_per |
2.3812 |
h |
n/a |
LCDB (Rev. 2020-October); Warner et al., 2009 |
Published Reference List:
[Pravec, P.; Wolf, M.; Sarounova, L. (1999) http://www.asu.cas.cz/~ppravec/neo.htm]
[Skiff, B.A. (2011) Posting on CALL web site. http://www.minorplanet.info/call.html]
[Skiff, B.A.; McLelland, K.P.; Sanborn, J.; Pravec, P.; Koehn, B.W. (2019). Minor Planet Bull. 46, 458-503.] |
|
| 3838 Epona (1986 WA) Discovered 1986-Nov-27 by Maury, A. at Palomar |
| Reference: DISCOVERY.DB | Last Updated: 2003-08-29 |
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