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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5765799990855746 4.9162e-07  
a .694012284911033 3.219e-08 au
q .2938586823116521 3.2813e-07 au
i 11.14942861661816 4.4332e-05 deg
node 165.2053121443355 3.914e-05 deg
peri 149.2251295561869 4.6272e-05 deg
M 321.6873986096381 0.00012613 deg
tp 2459222.974410258867
(2021-Jan-08.47441026)
7.5451e-05 TDB
period 211.1782390017392
0.58
1.4692e-05
4.022e-08
d
yr
n 1.704721100534583 1.186e-07 deg/d
Q 1.094165887510414 5.075e-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 = .0252465 au 
 Jupiter MOID = 4.20994 au 
 T_jup = 8.083 
[ 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 21.9   n/a MPO536083  

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