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(2020 KW4)
Classification: Apollo [NEO]          SPK-ID: 54017246
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 2458995.5 (2020-May-26.0) TDB
Reference: JPL 1 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .549136129581381 0.0029883  
a 1.947566656818781 0.011724 au
q .878087440791566 0.0005369 au
i 1.44266255193977 0.0063979 deg
node 60.29215299320797 0.0067007 deg
peri 237.1669037220923 0.018615 deg
M 345.5350314714584 0.14742 deg
tp 2459035.388886684210
(2020-Jul-04.88888668)
0.046693 TDB
period 992.7432042441759
2.72
8.9642
0.02454
d
yr
n .3626315430424786 0.0032745 deg/d
Q 3.017045872845997 0.018162 au
  Orbit Determination Parameters
   # obs. used (total)      15  
   data-arc span      1 day  
   first obs. used      2020-05-25  
   last obs. used      2020-05-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      8  
   norm. resid. RMS      .33956  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-26 13:12:04  

Additional Information
 Earth MOID = .00258907 au 
 Jupiter MOID = 2.23193 au 
 T_jup = 3.694 
[ hide covariance matrix ]
Orbit Covariance (6×6)
  e q tp node peri i
e 8.930190460961804E-6 -1.596741434349922E-6 -.0001381498004993755 -1.986975652471469E-5 4.695888868995753E-5 1.887123051739226E-5
q -1.596741434349922E-6 2.882648533672801E-7 2.435664923575641E-5 3.511853305531609E-6 -8.920723613106031E-6 -3.42782225928635E-6
tp -.0001381498004993755 2.435664923575641E-5 .00218022233210584 .0003124908741318736 -.0006610060923840391 -.0002852468915615031
node -1.986975652471469E-5 3.511853305531609E-6 .0003124908741318736 4.489879348323599E-5 -9.68035246724182E-5 -4.116115393216048E-5
peri 4.695888868995753E-5 -8.920723613106031E-6 -.0006610060923840391 -9.68035246724182E-5 .0003465120925868546 .0001093701628836744
i 1.887123051739226E-5 -3.42782225928635E-6 -.0002852468915615031 -4.116115393216048E-5 .0001093701628836744 4.093320677208717E-5

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 26.355   .21888 1 autocmod 2.8

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