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181596 (2006 WJ2)
Classification: Main-belt Asteroid          SPK-ID: 2181596
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2347320548024347 5.7099e-08  
a 2.928931855630327 3.0315e-08 au
q 2.241417662781912 1.6529e-07 au
i 18.11431200022275 1.4095e-05 deg
node 59.27498071234778 3.3687e-05 deg
peri 49.22408096672793 5.9903e-05 deg
M 244.9698754138049 4.6588e-05 deg
tp 2459785.520948404519
(2022-Jul-25.02094840)
0.00023775 TDB
period 1830.890318368846
5.01
2.8425e-05
7.782e-08
d
yr
n .1966256505855178 3.0526e-09 deg/d
Q 3.616446048478742 3.743e-08 au
  Orbit Determination Parameters
   # obs. used (total)      305  
   data-arc span      6833 days (18.71 yr)  
   first obs. used      2001-10-15  
   last obs. used      2020-06-30  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .6443  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:31:15  

Additional Information
 Earth MOID = 1.2981 au 
 Jupiter MOID = 1.83198 au 
 T_jup = 3.163 
[ 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 15.8   n/a MPO436897  

181596 (2006 WJ2)          Discovered 2006-Nov-18 by Ferrando, R. at Pla D'Arguines
Reference: 20080321/Numbers.arcLast Updated: 2008-03-26

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