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332814 (2009 WE195)
Classification: Main-belt Asteroid          SPK-ID: 2332814
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05628220663998339 5.943e-08  
a 3.083700165788849 6.2922e-08 au
q 2.91014271584217 1.8263e-07 au
i 11.79187690302882 6.2132e-06 deg
node 94.76775844456257 3.6088e-05 deg
peri 67.89659352853633 7.6527e-05 deg
M 248.3550637198567 7.1156e-05 deg
tp 2459613.899153726668
(2022-Feb-03.39915373)
0.00039994 TDB
period 1977.910532256494
5.42
6.0538e-05
1.657e-07
d
yr
n .1820102548264885 5.5708e-09 deg/d
Q 3.257257615735528 6.6463e-08 au
  Orbit Determination Parameters
   # obs. used (total)      193  
   data-arc span      4940 days (13.52 yr)  
   first obs. used      2006-04-18  
   last obs. used      2019-10-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .6332  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 09:46:41  

Additional Information
 Earth MOID = 1.94534 au 
 Jupiter MOID = 1.85937 au 
 T_jup = 3.192 
[ 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 15.3   n/a MPO455451  

332814 (2009 WE195)          Discovered 2009-Nov-25 by La Sagra at La Sagra
Reference: 20120703/Numbers.arcLast Updated: 2012-07-09

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