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JPL Small-Body Database Browser
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(2021 KN2)
Classification: Apollo [NEO]          SPK-ID: 54149826
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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 3 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3717435786595887 5.0139e-05  
a 1.40656868161701 8.8734e-05 au
q .8836858062822029 1.5003e-05 au
i 3.766057501711479 0.00027642 deg
node 70.35588055253233 9.4715e-05 deg
peri 237.3635203854141 0.000675 deg
M 351.0550435717651 0.0014884 deg
tp 2459411.639640769278
(2021-Jul-16.13964077)
0.0011124 TDB
period 609.3121549185141
1.67
0.057658
0.0001579
d
yr
n .5908301633144744 5.5909e-05 deg/d
Q 1.929451556951816 0.00012172 au
  Orbit Determination Parameters
   # obs. used (total)      65  
   data-arc span      1 day  
   first obs. used      2021-05-30  
   last obs. used      2021-05-31  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      6  
   norm. resid. RMS      .23451  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jun-01 05:50:56  

Additional Information
 Earth MOID = .000897034 au 
 Jupiter MOID = 3.33914 au 
 T_jup = 4.663 
[ 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 28.63   .35333 MPO622918 autocmod 2.9c

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