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(2012 XE54)
Classification: Apollo [NEO]          SPK-ID: 3619633
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 .5598953056869362 0.00022187  
a 1.909935857453291 0.0008679 au
q .8405717367020399 4.1804e-05 au
i 8.029687929672544 0.0027069 deg
node 259.1369012342067 0.00041747 deg
peri 234.0319369831058 0.00014844 deg
M 283.8927546249884 0.69665 deg
tp 2459204.321551411782
(2020-Dec-20.82155141)
2.0046 TDB
period 964.1100285089667
2.64
0.65716
0.001799
d
yr
n .3734013643201636 0.00025452 deg/d
Q 2.979299978204542 0.0013538 au
  Orbit Determination Parameters
   # obs. used (total)      192  
   data-arc span      2 days  
   first obs. used      2012-12-09  
   last obs. used      2012-12-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      7  
   norm. resid. RMS      .369  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-06 08:47:46  

Additional Information
 Earth MOID = .000887765 au 
 Jupiter MOID = 2.14482 au 
 T_jup = 3.718 
[ 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 25.4   n/a MPO258433  

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