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(2020 KJ4)
Classification: Aten [NEO]          SPK-ID: 54017225
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 4 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1362204698658397 2.5296e-05  
a .9763495064187011 5.7843e-05 au
q .843350717901065 2.5283e-05 au
i 2.91754673569731 0.00031312 deg
node 67.73061565490801 0.00017154 deg
peri 293.1917796841146 0.027325 deg
M 263.9080787434706 0.032181 deg
tp 2459094.556923513023
(2020-Sep-02.05692351)
0.023141 TDB
period 352.37605848564
0.96
0.031314
8.573e-05
d
yr
n 1.021635810182804 9.0789e-05 deg/d
Q 1.109348294936337 6.5722e-05 au
  Orbit Determination Parameters
   # obs. used (total)      44  
   data-arc span      7 days  
   first obs. used      2020-05-21  
   last obs. used      2020-05-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      5  
   norm. resid. RMS      .4279  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-28 06:49:49  

Additional Information
 Earth MOID = .000308843 au 
 Jupiter MOID = 4.10681 au 
 T_jup = 6.187 
[ hide covariance matrix ]
Orbital Elements at Epoch 2458993.5 (2020-May-24.0) TDB
Reference: JPL 4 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1335688551269262 4.3203e-05  
q .9103945045935369 2.6404e-05 au
tp 2459071.615974639404
(2020-Aug-10.11597464)
0.0044287 TDB
node 68.04472036334549 7.5123e-05 deg
peri 261.638935605295 0.0014343 deg
i 2.218946464721546 0.0006464 deg
  Orbit Determination Parameters
   # obs. used (total)      44  
   data-arc span      7 days  
   first obs. used      2020-05-21  
   last obs. used      2020-05-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      5  
   norm. resid. RMS      .4279  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-28 06:49:49  

Additional Information
 Jupiter MOID = 4.10681 au 
 T_jup = 6.187 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.866462241515548E-9 -1.140644266788426E-9 -1.912865930825439E-7 -3.181410738926107E-9 -6.169229057569997E-8 2.792498070594087E-8
q -1.140644266788426E-9 6.971504864922792E-10 1.168749014343937E-7 1.947156688699984E-9 3.766568859224166E-8 -1.706633470745358E-8
tp -1.912865930825439E-7 1.168749014343937E-7 1.961312942875451E-5 3.250782796039384E-7 6.33519984697251E-6 -2.861702031080815E-6
node -3.181410738926107E-9 1.947156688699984E-9 3.250782796039384E-7 5.64350183386579E-9 1.036488866301036E-7 -4.765627125811799E-8
peri -6.169229057569997E-8 3.766568859224166E-8 6.33519984697251E-6 1.036488866301036E-7 2.057093017519676E-6 -9.226566959878674E-7
i 2.792498070594087E-8 -1.706633470745358E-8 -2.861702031080815E-6 -4.765627125811799E-8 -9.226566959878674E-7 4.178265170588954E-7

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 29.894   .38121 4 autocmod 2.8

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