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(2012 DL31)
Classification: Aten [NEO]          SPK-ID: 3599867
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 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2241377089079897 1.5991e-06  
a .9586199669536474 3.3942e-07 au
q .7437570838472041 1.795e-06 au
i 9.498540517627218 6.2047e-05 deg
node 159.7873511753806 1.8719e-05 deg
peri 200.0400641226115 0.00017784 deg
M 75.59640809939442 0.0014152 deg
tp 2458928.510891916589
(2020-Mar-20.01089192)
0.0013097 TDB
period 342.8215646959484
0.94
0.00018208
4.985e-07
d
yr
n 1.050108969426376 5.5772e-07 deg/d
Q 1.173482850060091 4.155e-07 au
  Orbit Determination Parameters
   # obs. used (total)      89  
   data-arc span      802 days (2.20 yr)  
   first obs. used      2012-02-24  
   last obs. used      2014-05-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      3  
   norm. resid. RMS      .43894  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-06 08:50:48  

Additional Information
 Earth MOID = .113299 au 
 Jupiter MOID = 4.20437 au 
 T_jup = 6.253 
[ 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 22.8   n/a MPO260828  

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