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(2012 DK31)
Classification: Aten [NEO, PHA]          SPK-ID: 3599866
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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5765633988852946 5.1786e-07  
a .6936569561724537 2.0776e-08 au
q .2937197438612359 3.5099e-07 au
i 11.17156870479661 3.9595e-05 deg
node 165.2530145067811 4.1594e-05 deg
peri 149.2187947006068 4.0384e-05 deg
M 340.4482128835075 0.00011122 deg
tp 2459011.960392843481
(2020-Jun-11.46039284)
6.5668e-05 TDB
period 211.0160774087468
0.58
9.4802e-06
2.596e-08
d
yr
n 1.706031144265208 7.6646e-08 deg/d
Q 1.093594168483672 3.2754e-08 au
  Orbit Determination Parameters
   # obs. used (total)      149  
   data-arc span      2895 days (7.93 yr)  
   first obs. used      2012-02-24  
   last obs. used      2020-01-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      1  
   norm. resid. RMS      .39677  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-28 05:39:28  

Additional Information
 Earth MOID = .0253904 au 
 Jupiter MOID = 4.21095 au 
 T_jup = 8.087 
[ 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 21.8   n/a MPO227521  

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