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(2020 KE4)
Classification: Apollo [NEO]          SPK-ID: 54017215
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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 4 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4900268977847045 0.00016215  
a 1.881375283534431 0.0005699 au
q .9594507897752348 1.4422e-05 au
i 4.548482413267291 0.0011907 deg
node 240.8942216289538 0.00045382 deg
peri 43.67105669318507 0.0009708 deg
M 65.15894017577105 0.029147 deg
tp 2459029.898404203951
(2020-Jun-29.39840420)
0.0012042 TDB
period 942.5655838001932
2.58
0.42828
0.001173
d
yr
n .3819362877101541 0.00017354 deg/d
Q 2.803299777293627 0.00084917 au
  Orbit Determination Parameters
   # obs. used (total)      30  
   data-arc span      23 days  
   first obs. used      2020-05-11  
   last obs. used      2020-06-03  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      6  
   norm. resid. RMS      .40121  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 22:33:59  

Additional Information
 Earth MOID = .0129997 au 
 Jupiter MOID = 2.38966 au 
 T_jup = 3.811 
[ 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 25.3   .52728 E2020L19 autocmod 2.8

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