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JPL Small-Body Database Browser
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(2019 KA4)
Classification: Amor [NEO]          SPK-ID: 3842639
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 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4230294949048551 4.7599e-05  
a 1.782643482355964 0.00014935 au
q 1.028532710419489 1.3212e-06 au
i 7.616993027427169 0.00063027 deg
node 248.3194468251669 8.1173e-05 deg
peri 12.32586945940598 0.00011378 deg
M 146.8419745370884 0.018436 deg
tp 2458645.896608247047
(2019-Jun-11.39660825)
5.3327e-05 TDB
period 869.3510246882464
2.38
0.10925
0.0002991
d
yr
n .4141020022712895 5.2041e-05 deg/d
Q 2.53675425429244 0.00021253 au
  Orbit Determination Parameters
   # obs. used (total)      64  
   # delay obs. used      0  
   # Doppler obs. used      1  
   data-arc span      11 days  
   first obs. used      2019-05-29  
   last obs. used      2019-06-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      6  
   norm. resid. RMS      .38301  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-25 05:57:31  

Additional Information
 Earth MOID = .0197353 au 
 Jupiter MOID = 2.54825 au 
 T_jup = 3.970 
[ 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 26.0   .59388 MPO496136 autocmod 2.8

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