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(2005 WK56)
Classification: Apollo [NEO]          SPK-ID: 3305029
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

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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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3925190699635189 7.9803e-07  
a 1.621241643056425 2.1445e-06 au
q .9848733811377901 1.1709e-07 au
i 5.34825716416365 1.7027e-05 deg
node 76.45797546442884 2.1936e-05 deg
peri 321.6947828079898 5.4052e-05 deg
M 19.98152154815168 0.0049848 deg
tp 2458958.649937829890
(2020-Apr-19.14993783)
0.010357 TDB
period 753.9977546221122
2.06
0.001496
4.096e-06
d
yr
n .4774550027412541 9.4732e-07 deg/d
Q 2.257609904975061 2.9862e-06 au
  Orbit Determination Parameters
   # obs. used (total)      143  
   # delay obs. used      1  
   # Doppler obs. used      2  
   data-arc span      26 days  
   first obs. used      2005-11-30  
   last obs. used      2005-12-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      3  
   norm. resid. RMS      .42952  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-06 09:09:45  

Additional Information
 Earth MOID = .0318646 au 
 Jupiter MOID = 3.1715 au 
 T_jup = 4.232 
[ hide covariance matrix ]
Orbital Elements at Epoch 2453712.5 (2005-Dec-08.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3931042155711528 7.9171e-07  
q .9838929374086688 1.1729e-07 au
tp 2453680.164262149316
(2005-Nov-05.66426215)
4.5071e-05 TDB
node 76.5327014509229 2.1802e-05 deg
peri 321.4971650247689 5.445e-05 deg
i 5.348440761945828 1.7023e-05 deg
  Orbit Determination Parameters
   # obs. used (total)      143  
   # delay obs. used      1  
   # Doppler obs. used      2  
   data-arc span      26 days  
   first obs. used      2005-11-30  
   last obs. used      2005-12-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      3  
   norm. resid. RMS      .42952  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-06 09:09:45  

Additional Information
 Jupiter MOID = 3.1715 au 
 T_jup = 4.232 
Orbit Covariance (6×6)
  e q tp node peri i
e 6.268113189592225E-13 7.696034953319955E-16 2.379890463741793E-11 -1.253323312496855E-12 2.108789740338926E-11 1.373426037607599E-12
q 7.696034953319955E-16 1.375755387300722E-14 3.93140028226101E-12 -4.777444509736872E-14 5.011203567244179E-12 -5.949371089375287E-13
tp 2.379890463741793E-11 3.93140028226101E-12 2.03135039279288E-9 -4.488231982745489E-11 2.217446540077007E-9 -1.185633575069198E-10
node -1.253323312496855E-12 -4.777444509736872E-14 -4.488231982745489E-11 4.753311512338975E-10 -5.108938270630616E-10 -2.378184345839982E-10
peri 2.108789740338926E-11 5.011203567244179E-12 2.217446540077007E-9 -5.108938270630616E-10 2.964819916160251E-9 6.767383586000372E-11
i 1.373426037607599E-12 -5.949371089375287E-13 -1.185633575069198E-10 -2.378184345839982E-10 6.767383586000372E-11 2.897956553149677E-10

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 22.6   n/a MPO97989  

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