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392952 (2012 WT20)
Classification: Main-belt Asteroid          SPK-ID: 2392952
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | 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.


Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04205827298131268 5.6835e-08  
a 3.019573359688653 5.1777e-08 au
q 2.892575319039768 1.622e-07 au
i 10.01924589723676 6.8166e-06 deg
node 46.20538158877162 3.461e-05 deg
peri 84.63545609311997 9.0981e-05 deg
M 93.45669588891855 8.5843e-05 deg
tp 2458502.963752272585
(2019-Jan-19.46375227)
0.0004535 TDB
period 1916.535219635424
5.25
4.9295e-05
1.35e-07
d
yr
n .1878389691520939 4.8314e-09 deg/d
Q 3.146571400337538 5.3955e-08 au
  Orbit Determination Parameters
   # obs. used (total)      160  
   data-arc span      5861 days (16.05 yr)  
   first obs. used      2004-05-24  
   last obs. used      2020-06-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .65356  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 16:21:14  

Additional Information
 Earth MOID = 1.92972 au 
 Jupiter MOID = 1.90009 au 
 T_jup = 3.222 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.1   n/a MPO472034  

392952 (2012 WT20)          Discovered 2009-Mar-18 by CSS at Catalina
Reference: Last Updated: 2014-04-17

[ show close-approach data ]
Alternate Designations
 2012 WT20 = 2014 DB13 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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