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(2016 EK156)
Classification: Apollo [NEO]          SPK-ID: 3746626
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 2457462.5 (2016-Mar-15.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2484575449143037 0.00072404  
a 1.256874350721864 0.0010976 au
q .9445944352757499 8.5347e-05 au
i 12.4361533524748 0.026664 deg
node 5.21846053050984 0.0025662 deg
peri 236.4634701387425 0.016022 deg
M 318.2461517416761 0.075258 deg
tp 2457522.193937984018
(2016-May-13.69393798)
0.02941 TDB
period 514.6787319169401
1.41
0.67417
0.001846
d
yr
n .6994654678252714 0.00091622 deg/d
Q 1.569154266167977 0.0013703 au
  Orbit Determination Parameters
   # obs. used (total)      39  
   data-arc span      9 days  
   first obs. used      2016-03-12  
   last obs. used      2016-03-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      8  
   norm. resid. RMS      .50981  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-06 08:27:30  

Additional Information
 Earth MOID = .0293552 au 
 Jupiter MOID = 3.46331 au 
 T_jup = 5.070 
[ 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 E2016F49  

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
2009-Mar-15 01:36 5_13:40 Earth 0.309344987542472 0.136616282702717 0.482272839163756 16.521508281478 16.5209869350128 2454905.566351768 8020.42060945303 8627131.76524553 81.6105536582835 2.20295366148665 17589.6666335291 T 9 CATAB v2.0e-lin.ifort 2017-Nov-30 11:38:05 2018-Dec-11 16:55
2016-Mar-29 09:09 < 00:01 Earth 0.0360400526747205 0.0357952831149006 0.0362848167483628 9.45717396199028 9.44935327020186 2457476.881419733 0.757245000324518 12185.3574781932 32.6946613805195 0.260012703705781 326.089930157968 T 9 CATAB v2.0e-lin.ifort 2017-Nov-30 11:38:05 2018-Dec-11 16:55
2016-Sep-06 13:53 15:40 Earth 0.318061965504521 0.315652598840133 0.320484115139379 7.6080331881538 7.60693200476664 2457638.078712992 939.704055360903 156958.205534417 4263.94054884967 39.9123189650367 4614.3812757497 T 9 CATAB v2.0e-lin.ifort 2017-Nov-30 11:38:05 2018-Dec-11 16:55
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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