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JPL Small-Body Database Browser
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(2012 DN31)
Classification: Apollo [NEO]          SPK-ID: 3599868
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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5975645880373062 0.00010297  
a 2.507974892233133 0.00080616 au
q 1.009297908947933 6.6188e-05 au
i 2.756620057268275 0.00029601 deg
node 149.9504444968648 0.0016826 deg
peri 6.892540491869133 0.0025574 deg
M 128.8972471012332 0.43911 deg
tp 2458877.073210372957
(2020-Jan-28.57321037)
1.5191 TDB
period 1450.718680740128
3.97
0.69947
0.001915
d
yr
n .2481528671129644 0.00011965 deg/d
Q 4.006651875518332 0.0012879 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.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      6  
   norm. resid. RMS      .33119  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 06:04:07  

Additional Information
 Earth MOID = .0207431 au 
 Jupiter MOID = .990775 au 
 T_jup = 3.187 
[ 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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