308635 (2005 YU55) |
Classification: Apollo [NEO, PHA] SPK-ID: 2308635 |
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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 130 (heliocentric ecliptic J2000)
Element | Value | Uncertainty (1-sigma) | Units |
e | .4305588716168578 | 1.6427e-09 | |
a | 1.157113899594999 | 4.0879e-09 | au |
q | .6589082446531941 | 2.5729e-09 | au |
i | .3402453412260451 | 1.1612e-06 | deg |
node | 35.91984441292271 | 4.066e-05 | deg |
peri | 273.5848485310565 | 4.0634e-05 | deg |
M | 160.5509757053758 | 1.5555e-05 | deg |
tp | 2458997.744314550183 (2020-May-28.24431455) | 1.857e-05 | TDB |
period | 454.6347130015611 1.24 | 2.4092e-06 6.596e-09 | d yr |
n | .7918445066001017 | 4.1962e-09 | deg/d |
Q | 1.655319554536804 | 5.8479e-09 | 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 |
21.9 |
|
n/a |
MPO254628 |
|
magnitude slope |
G |
-0.12 |
|
n/a |
The Astronomer's Telegram, #3763 |
|
diameter |
diameter |
0.4 |
km |
n/a |
2010 radar result |
http://echo.jpl.nasa.gov/asteroids/2005YU55/2005YU55_planning.html |
rotation period |
rot_per |
18 |
h |
n/a |
2010 radar result |
http://echo.jpl.nasa.gov/asteroids/2005YU55/2005YU55_planning.html |
SMASSII spectral type |
spec_B |
C |
|
n/a |
M. Hicks et al., ATel 2571, 2010 |
also R. Binzel, personal communication |
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308635 (2005 YU55) Discovered 2005-Dec-28 by Spacewatch at Kitt Peak |
Reference: 20111210/Numbers.arc | Last Updated: 2011-12-12 |
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