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(2012 EL8)
Classification: Apollo [NEO]          SPK-ID: 3601299
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ hide orbit diagram ]

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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1493555352115193 0.00020305  
a 1.188275554278753 0.00027419 au
q 1.010800022890685 3.1139e-05 au
i 4.253001800987923 0.0048399 deg
node 358.331655783577 0.0032567 deg
peri 166.0821680770519 0.072528 deg
M 281.4504998771927 0.87915 deg
tp 2459303.732179324080
(2021-Mar-30.23217932)
1.1911 TDB
period 473.1231197979092
1.30
0.16376
0.0004484
d
yr
n .7609013065220132 0.00026336 deg/d
Q 1.365751085666821 0.00031514 au
  Orbit Determination Parameters
   # obs. used (total)      22  
   data-arc span      1 day  
   first obs. used      2012-03-14  
   last obs. used      2012-03-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      7  
   norm. resid. RMS      .54786  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-06 08:50:33  

Additional Information
 Earth MOID = .018246 au 
 Jupiter MOID = 3.60189 au 
 T_jup = 5.321 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456001.5 (2012-Mar-15.0) TDB
Reference: JPL 6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1511599885838201 0.00019289  
q 1.010264123439 3.3815e-05 au
tp 2455991.064916092728
(2012-Mar-04.56491609)
0.065466 TDB
node 358.5682961447668 0.0026512 deg
peri 165.2451280471093 0.071139 deg
i 4.285005454582159 0.0048969 deg
  Orbit Determination Parameters
   # obs. used (total)      22  
   data-arc span      1 day  
   first obs. used      2012-03-14  
   last obs. used      2012-03-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      7  
   norm. resid. RMS      .54786  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-06 08:50:33  

Additional Information
 Jupiter MOID = 3.60189 au 
 T_jup = 5.321 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.720508504488461E-8 1.924597476084589E-9 -3.262372201343094E-6 2.263068634728492E-7 -3.743846066116579E-6 6.759877228948425E-7
q 1.924597476084589E-9 1.143483679561243E-9 1.874125996286568E-6 -6.491683719084641E-8 2.017072845083149E-6 1.45320116706905E-7
tp -3.262372201343094E-6 1.874125996286568E-6 .004285745373258248 -.0001698688808918381 .004656588005187051 .0001565610650981495
node 2.263068634728492E-7 -6.491683719084641E-8 -.0001698688808918381 7.028597722080931E-6 -.000185148566754546 -4.008448094546084E-6
peri -3.743846066116579E-6 2.017072845083149E-6 .004656588005187051 -.000185148566754546 .005060686623238392 .0001655728182491462
i 6.759877228948425E-7 1.45320116706905E-7 .0001565610650981495 -4.008448094546084E-6 .0001655728182491462 2.398011742696075E-5

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 28.3   n/a MPO226085  

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