| 420210 (2011 HF) |
| Classification: Apollo [NEO, PHA] SPK-ID: 2420210 |
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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 69 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | .2346410506605061 | 4.3438e-08 | |
| a | 1.283549683709829 | 6.9779e-09 | au |
| q | .9823762373491942 | 5.4074e-08 | au |
| i | 10.62174656048703 | 5.3403e-06 | deg |
| node | 204.8934418524268 | 1.7893e-05 | deg |
| peri | 149.6444243485158 | 1.9537e-05 | deg |
| M | 98.24454260601901 | 1.3635e-05 | deg |
| tp | 2459055.548275282983
(2020-Jul-25.04827528) | 1.9154e-05 | TDB |
| period | 531.1503266638346
1.45 | 4.3313e-06
1.186e-08 | d
yr |
| n | .6777742230926731 | 5.527e-09 | deg/d |
| Q | 1.584723130070463 | 8.6153e-09 | au |
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| | Orbit Determination Parameters
Additional Information
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| 420210 (2011 HF) Discovered 2011-Apr-22 by Spacewatch at Kitt Peak |
| Reference: | Last Updated: 2015-01-07 |
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