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(2002 EY2)
Classification: Apollo [NEO, PHA]          SPK-ID: 3117420
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 46 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4863172603710967 6.4203e-08  
a 1.725416048389479 5.8171e-09 au
q .8863164427363841 1.0943e-07 au
i 21.73198556185713 1.9578e-05 deg
node 343.4043713627735 2.0488e-05 deg
peri 51.08015992140678 2.0786e-05 deg
M 91.82616283901095 8.7237e-06 deg
tp 2458789.344152586283
(2019-Nov-01.84415259)
1.9401e-05 TDB
period 827.8262177001671
2.27
4.1864e-06
1.146e-08
d
yr
n .4348738808975358 2.1992e-09 deg/d
Q 2.564515654042574 8.646e-09 au
  Orbit Determination Parameters
   # obs. used (total)      164  
   data-arc span      6569 days (17.98 yr)  
   first obs. used      2002-02-24  
   last obs. used      2020-02-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55773  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-21 22:06:33  

Additional Information
 Earth MOID = .00131466 au 
 Jupiter MOID = 3.09264 au 
 T_jup = 3.951 
[ hide covariance matrix ]
Orbital Elements at Epoch 2455185.5 (2009-Dec-20.0) TDB
Reference: JPL 46 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .486525201097555 6.4552e-08  
q .886190109011092 1.0937e-07 au
tp 2455478.159396409205
(2010-Oct-08.65939641)
1.6313e-05 TDB
node 343.5248924786978 2.0479e-05 deg
peri 50.91812076886926 2.0756e-05 deg
i 21.74984030417181 1.9585e-05 deg
  Orbit Determination Parameters
   # obs. used (total)      164  
   data-arc span      6569 days (17.98 yr)  
   first obs. used      2002-02-24  
   last obs. used      2020-02-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55773  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-21 22:06:33  

Additional Information
 Jupiter MOID = 3.09264 au 
 T_jup = 3.951 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.166992011597348E-15 -7.058229919430773E-15 -3.627999455274415E-13 -5.215848843657106E-13 5.732244275638549E-14 3.112647600441915E-14
q -7.058229919430773E-15 1.196148773759094E-14 6.126454539672814E-13 8.875915135761652E-13 -9.523466232246517E-14 -6.47202941235192E-14
tp -3.627999455274415E-13 6.126454539672814E-13 2.661207336657533E-10 -1.640314801955945E-12 1.851434222757791E-10 -4.812091247991897E-11
node -5.215848843657106E-13 8.875915135761652E-13 -1.640314801955945E-12 4.193814187331065E-10 -3.209815744456033E-10 -1.429156614074816E-10
peri 5.732244275638549E-14 -9.523466232246517E-14 1.851434222757791E-10 -3.209815744456033E-10 4.307971306496131E-10 7.732138797579687E-11
i 3.112647600441915E-14 -6.47202941235192E-14 -4.812091247991897E-11 -1.429156614074816E-10 7.732138797579687E-11 3.835767606000402E-10

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 19.3   n/a MPO202389  

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