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(2015 EK7)
Classification: Apollo [NEO, PHA]          SPK-ID: 3713283
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 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3663727191431028 9.3873e-08  
a 1.510577034110664 1.4257e-07 au
q .9571428186484163 8.2661e-08 au
i 3.425097737131884 6.7703e-06 deg
node 140.7905480703939 6.9491e-05 deg
peri 125.78671317 7.0222e-05 deg
M 231.8206551839251 0.000136 deg
tp 2459241.950600567559
(2021-Jan-27.45060057)
0.00029023 TDB
period 678.1296653454285
1.86
9.6006e-05
2.629e-07
d
yr
n .5308719237590376 7.5158e-08 deg/d
Q 2.064011249572911 1.9481e-07 au
  Orbit Determination Parameters
   # obs. used (total)      52  
   data-arc span      948 days (2.60 yr)  
   first obs. used      2015-03-14  
   last obs. used      2017-10-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      1  
   norm. resid. RMS      .66347  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Oct-19 06:17:53  

Additional Information
 Earth MOID = .0160979 au 
 Jupiter MOID = 3.03739 au 
 T_jup = 4.446 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457155.5 (2015-May-13.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3661172375684908 9.262e-08  
q .9571782128345355 8.2622e-08 au
tp 2457207.560991424239
(2015-Jul-04.06099142)
2.4432e-05 TDB
node 140.8223479744307 6.9517e-05 deg
peri 125.7039456541 7.0234e-05 deg
i 3.424340702633718 6.7699e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      52  
   data-arc span      948 days (2.60 yr)  
   first obs. used      2015-03-14  
   last obs. used      2017-10-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      1  
   norm. resid. RMS      .66347  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Oct-19 06:17:53  

Additional Information
 Jupiter MOID = 3.03739 au 
 T_jup = 4.446 
Orbit Covariance (6×6)
  e q tp node peri i
e 8.578546339929404E-15 -6.126476320219373E-15 6.683643873593302E-13 -2.556291419673831E-13 9.021238171993958E-13 3.87308831738756E-14
q -6.126476320219373E-15 6.826474056556045E-15 -6.096376998419617E-13 2.91989036458337E-13 -1.03004582490896E-12 -1.410091651333271E-14
tp 6.683643873593302E-13 -6.096376998419617E-13 5.969269619189328E-10 1.963387432311061E-10 1.586517248799124E-10 5.227678288356306E-11
node -2.556291419673831E-13 2.91989036458337E-13 1.963387432311061E-10 4.832652121957459E-9 -4.750240222168842E-9 4.801029398480343E-11
peri 9.021238171993958E-13 -1.03004582490896E-12 1.586517248799124E-10 -4.750240222168842E-9 4.932759007957752E-9 -2.397574775139151E-11
i 3.87308831738756E-14 -1.410091651333271E-14 5.227678288356306E-11 4.801029398480343E-11 -2.397574775139151E-11 4.5830996227225E-11

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 22.1   n/a MPO369258  

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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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