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181617 (2006 WL141)
Classification: Main-belt Asteroid          SPK-ID: 2181617
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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03360918857031344 3.9207e-08  
a 2.907412160326119 2.071e-08 au
q 2.809696396778096 1.0753e-07 au
i 7.417660111439663 3.7083e-06 deg
node 212.7980749751625 2.9768e-05 deg
peri 359.3539161177895 6.5007e-05 deg
M 150.5934212706034 5.827e-05 deg
tp 2458443.036291354613
(2018-Nov-20.53629135)
0.00029178 TDB
period 1810.749319668782
4.96
1.9347e-05
5.297e-08
d
yr
n .1988127213908606 2.1242e-09 deg/d
Q 3.005127923874142 2.1406e-08 au
  Orbit Determination Parameters
   # obs. used (total)      494  
   data-arc span      9714 days (26.60 yr)  
   first obs. used      1994-06-09  
   last obs. used      2021-01-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49021  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:31:20  

Additional Information
 Earth MOID = 1.80209 au 
 Jupiter MOID = 1.9603 au 
 T_jup = 3.271 
[ 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 15.81   n/a E2021B55  

181617 (2006 WL141)          Discovered 2006-Nov-20 by Spacewatch at Kitt Peak
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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