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(2019 KJ4)
Classification: Aten [NEO]          SPK-ID: 3842657
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 6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2639392528880989 0.00019866  
a .8208662482691115 0.00011131 au
q .6042074239799056 0.000245 au
i .1876907554698863 0.00016389 deg
node 356.4181633543747 0.010741 deg
peri 59.12217748491198 0.011472 deg
M 326.386137044237 0.10712 deg
tp 2459025.864304004815
(2020-Jun-25.36430400)
0.085993 TDB
period 271.6483212224136
0.74
0.055256
0.0001513
d
yr
n 1.325242866880256 0.00026957 deg/d
Q 1.037525072558317 0.0001407 au
  Orbit Determination Parameters
   # obs. used (total)      29  
   data-arc span      8 days  
   first obs. used      2019-05-31  
   last obs. used      2019-06-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      7  
   norm. resid. RMS      .36047  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-27 14:02:16  

Additional Information
 Earth MOID = .00189802 au 
 Jupiter MOID = 4.23583 au 
 T_jup = 7.105 
[ show covariance matrix ]

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 27.4   .3847 MPO473668 autocmod 2.6q

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