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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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03340530905136319 3.9104e-08  
a 2.274769331402446 6.9498e-09 au
q 2.198779958866384 8.8575e-08 au
i 6.765744283651262 4.3876e-06 deg
node 158.3620586863939 2.465e-05 deg
peri 354.119486282794 5.642e-05 deg
M 216.099572412032 5.2256e-05 deg
tp 2459701.415023342545
(2022-May-01.91502334)
0.00018265 TDB
period 1253.154083180737
3.43
5.7429e-06
1.572e-08
d
yr
n .287275128279719 1.3165e-09 deg/d
Q 2.350758703938507 7.182e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1166  
   data-arc span      14049 days (38.46 yr)  
   first obs. used      1982-07-27  
   last obs. used      2021-01-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50465  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 05:24:26  

Additional Information
 Earth MOID = 1.20813 au 
 Jupiter MOID = 2.61866 au 
 T_jup = 3.600 
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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 15.79   n/a E2021B10  

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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