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JPL Small-Body Database Browser
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26661 Kempelen (2000 WY67)
Classification: Main-belt Asteroid          SPK-ID: 2026661
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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03300300656620787 4.1498e-08  
a 2.275646187003558 8.7445e-09 au
q 2.200543020951514 9.572e-08 au
i 6.764128599296114 4.7636e-06 deg
node 158.36339608792 3.5837e-05 deg
peri 354.0806772430899 7.8948e-05 deg
M 158.6959941732481 6.9306e-05 deg
tp 2458447.762410737184
(2018-Nov-25.26241074)
0.00024187 TDB
period 1253.8787331795
3.43
7.2273e-06
1.979e-08
d
yr
n .2871091043127724 1.6549e-09 deg/d
Q 2.350749353055603 9.033e-09 au
  Orbit Determination Parameters
   # obs. used (total)      906  
   data-arc span      13437 days (36.79 yr)  
   first obs. used      1982-07-27  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52982  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 03:25:32  

Additional Information
 Earth MOID = 1.21013 au 
 Jupiter MOID = 2.61958 au 
 T_jup = 3.599 
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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 15.7   n/a MPO435949  

26661 Kempelen           Discovered 2000 Nov. 27 by P. Kušnirák at Ondřejov.
Wolfgang Kempelen (1734-1804), a polymath, mechanic and inventor, constructed a speech machine in 1778 based on imitating the human vocal organs. His most famous inventions are a chess machine, a writing machine for the blind and a pressurised conduit that took water from the Danube to Bratislava Castle.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20020427/MPCPages.arcLast Updated: 2003-10-02

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Alternate Designations
 2000 WY67 = 1995 GK4 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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