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305566 (2008 WK45)
Classification: Main-belt Asteroid          SPK-ID: 2305566
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1728348447194765 4.1256e-08  
a 2.317849860787112 2.093e-08 au
q 1.917244640014911 9.7952e-08 au
i 6.324600408238985 4.8899e-06 deg
node 249.7148208696101 4.6107e-05 deg
peri 25.72814163964945 4.9184e-05 deg
M 235.4894834638341 1.8253e-05 deg
tp 2459446.289579481362
(2021-Aug-19.78957948)
6.9103e-05 TDB
period 1288.921233947941
3.53
1.7459e-05
4.78e-08
d
yr
n .2793033356253485 3.7832e-09 deg/d
Q 2.718455081559313 2.4548e-08 au
  Orbit Determination Parameters
   # obs. used (total)      213  
   data-arc span      5586 days (15.29 yr)  
   first obs. used      2004-10-09  
   last obs. used      2020-01-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60511  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 17:56:01  

Additional Information
 Earth MOID = .903226 au 
 Jupiter MOID = 2.39346 au 
 T_jup = 3.552 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 17.0   n/a MPO455250  

305566 (2008 WK45)          Discovered 2008-Nov-08 by Spacewatch at Kitt Peak
Reference: 20111110/Numbers.arcLast Updated: 2011-11-14

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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