| 277475 (2005 WK4) |
| Classification: Apollo [NEO, PHA] SPK-ID: 2277475 |
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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 92 (heliocentric ecliptic J2000)
| Element | Value | Uncertainty (1-sigma) | Units |
| e | .2373339163539079 | 5.2171e-08 | |
| a | 1.01061821803818 | 2.8428e-09 | au |
| q | .7707642384125711 | 5.0959e-08 | au |
| i | 9.843575924445386 | 4.0267e-06 | deg |
| node | 138.1283386148595 | 4.1502e-06 | deg |
| peri | 74.09638986725002 | 6.7456e-06 | deg |
| M | 165.1205560353338 | 1.6565e-05 | deg |
| tp | 2459030.292868436676
(2020-Jun-29.79286844) | 1.638e-05 | TDB |
| period | 371.0898802308089
1.02 | 1.5658e-06
4.287e-09 | d
yr |
| n | .9701153795303948 | 4.0933e-09 | deg/d |
| Q | 1.250472197663789 | 3.5175e-09 | au |
|
| | Orbit Determination Parameters
Additional Information
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Physical Parameter Table
| Parameter |
Symbol |
Value |
Units |
Sigma |
Reference |
Notes |
| absolute magnitude |
H |
20.0 |
|
n/a |
MPO527904 |
|
| rotation period |
rot_per |
2.595 |
h |
n/a |
LCDB (Rev. 2020-October); Warner et al., 2009 |
Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Benner, L.A.M. et al. (2013) http://www.jpl.nasa.gov/news/news.php?release=2013-254]
[Stephens, R.D. (2014) Minor Planet Bull. 41, 13-15.] |
|
| 277475 (2005 WK4) Discovered 2005-Nov-27 by Siding Spring Survey at Siding Spring |
| Reference: 20110517/Numbers.arc | Last Updated: 2011-05-20 |
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