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(2012 DN31)
Classification: Apollo [NEO]          SPK-ID: 3599868
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5972459787446638 0.00012667  
a 2.50201537438124 0.00078231 au
q 1.00769675327472 1.8642e-06 au
i 2.738958856614723 0.00056705 deg
node 150.0912450090835 0.0027824 deg
peri 6.531231061344734 0.0038051 deg
M 30.94770503059078 0.39802 deg
tp 2458876.231992208828
(2020-Jan-27.73199221)
1.5399 TDB
period 1445.550898220122
3.96
0.67797
0.001856
d
yr
n .2490400029796673 0.0001168 deg/d
Q 3.99633399548776 0.0012495 au
  Orbit Determination Parameters
   # obs. used (total)      196  
   data-arc span      52 days  
   first obs. used      2012-02-25  
   last obs. used      2012-04-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      6  
   norm. resid. RMS      .32753  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-06 08:50:48  

Additional Information
 Earth MOID = .0184346 au 
 Jupiter MOID = 1.00283 au 
 T_jup = 3.191 
[ 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 24.0   n/a MPO230285  

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