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JPL Small-Body Database Browser
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(2017 KW31)
Classification: Apollo [NEO]          SPK-ID: 3775095
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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 5 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3920514983670421 6.8168e-05  
a 1.393275835156784 0.00011964 au
q .8470399563449751 2.2267e-05 au
i 5.913520443080664 0.00092202 deg
node 69.09078875491666 2.219e-05 deg
peri 245.8527308334422 0.00036603 deg
M 27.17924656609457 0.048691 deg
tp 2458555.148777674752
(2019-Mar-12.64877767)
0.075404 TDB
period 600.6950927571422
1.64
0.077372
0.0002118
d
yr
n .5993057115676256 7.7193e-05 deg/d
Q 1.939511713968594 0.00016655 au
  Orbit Determination Parameters
   # obs. used (total)      97  
   data-arc span      3 days  
   first obs. used      2017-05-28  
   last obs. used      2017-05-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      6  
   norm. resid. RMS      .44423  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Jun-06 06:20:37  

Additional Information
 Earth MOID = .000728154 au 
 Jupiter MOID = 3.36778 au 
 T_jup = 4.682 
[ 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 26.5   n/a MPO410065  

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