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JPL Small-Body Database Browser
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(2021 KR)
Classification: Apollo [NEO]          SPK-ID: 54146675
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 2459353.5 (2021-May-19.0) TDB
Reference: JPL 1 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3631574000835142 0.0045016  
a 1.51909147118369 0.0091835 au
q .9674221620195806 0.0013477 au
i 8.257611151195727 0.06053 deg
node 57.54190079133129 0.001972 deg
peri 229.1794515257547 0.2203 deg
M 337.2215479129352 0.21444 deg
tp 2459396.770909384083
(2021-Jul-01.27090938)
0.12 TDB
period 683.871200673722
1.87
6.2014
0.01698
d
yr
n .5264149150385959 0.0047736 deg/d
Q 2.0707607803478 0.012519 au
  Orbit Determination Parameters
   # obs. used (total)      11  
   data-arc span      1 day  
   first obs. used      2021-05-18  
   last obs. used      2021-05-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      9  
   norm. resid. RMS      .20878  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-19 11:42:04  

Additional Information
 Earth MOID = .0298087 au 
 Jupiter MOID = 3.11763 au 
 T_jup = 4.422 
[ 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 27.56   .11928 MPO622911 autocmod 2.9c

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