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(2017 KY4)
Classification: Apollo [NEO]          SPK-ID: 3774727
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 3 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06635032266205812 7.3705e-05  
a 1.073794238978678 8.8569e-05 au
q 1.002547644749783 3.6827e-06 au
i 17.52802200714077 0.0078312 deg
node 239.3710011799857 9.3048e-05 deg
peri 41.74784926309047 0.02431 deg
M 223.3765613790279 0.094479 deg
tp 2459154.742033485948
(2020-Nov-01.24203349)
0.12574 TDB
period 406.4246414481452
1.11
0.050284
0.0001377
d
yr
n .885773064146091 0.00010959 deg/d
Q 1.145040833207572 9.4445e-05 au
  Orbit Determination Parameters
   # obs. used (total)      121  
   data-arc span      6 days  
   first obs. used      2017-05-22  
   last obs. used      2017-05-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      6  
   norm. resid. RMS      .34627  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-May-28 06:19:45  

Additional Information
 Earth MOID = .00648845 au 
 Jupiter MOID = 3.88308 au 
 T_jup = 5.710 
[ 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 24.7   n/a MPO410043  

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