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(2016 JH18)
Classification: Aten [NEO]          SPK-ID: 3753079
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 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2592098065477558 0.00069271  
a .8967840751732902 9.3676e-05 au
q .6643288485325135 0.00069058 au
i 4.333354991878284 0.01336 deg
node 224.8842449196297 0.0021073 deg
peri 147.6962798322031 0.0059277 deg
M 158.6055623247009 0.48923 deg
tp 2458863.838503691757
(2020-Jan-15.33850369)
0.40013 TDB
period 310.1917609311077
0.85
0.048603
0.0001331
d
yr
n 1.160572411463741 0.00018185 deg/d
Q 1.129239301814067 0.00011796 au
  Orbit Determination Parameters
   # obs. used (total)      51  
   data-arc span      6 days  
   first obs. used      2016-05-08  
   last obs. used      2016-05-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      7  
   norm. resid. RMS      .56937  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Feb-10 07:07:51  

Additional Information
 Earth MOID = .0197659 au 
 Jupiter MOID = 4.29176 au 
 T_jup = 6.602 
[ 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 26.1   n/a MPO378539  

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