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21076 Kokoschka (1991 RG4)
Classification: Main-belt Asteroid          SPK-ID: 2021076
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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2234830344635731 4.1924e-08  
a 2.416142845565423 9.7362e-09 au
q 1.87617591074101 1.0334e-07 au
i 1.508627934389236 4.1961e-06 deg
node 278.7012048956747 0.00017617 deg
peri 59.17925653151134 0.00017646 deg
M 246.9760537415032 1.3628e-05 deg
tp 2459431.175635258655
(2021-Aug-04.67563526)
5.3745e-05 TDB
period 1371.773273059469
3.76
8.2917e-06
2.27e-08
d
yr
n .262434038532542 1.5863e-09 deg/d
Q 2.956109780389836 1.1912e-08 au
  Orbit Determination Parameters
   # obs. used (total)      839  
   data-arc span      25339 days (69.37 yr)  
   first obs. used      1950-12-11  
   last obs. used      2020-04-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53359  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 05:19:08  

Additional Information
 Earth MOID = .867557 au 
 Jupiter MOID = 2.43773 au 
 T_jup = 3.482 
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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 15.6   n/a MPO333013  

21076 Kokoschka           Discovered 1991 Sept. 12 by F. Borngen and L. D. Schmadel at Tautenburg.
Austrian expressionist painter, graphic artist and writer Oskar Kokoschka (1886-1980) was known for his portraits, landscapes and views of famous towns, produced in a monumental manner and expressive colors. He emigrated in the 1930s and from 1953 lived in Switzerland.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20010509/MPCPages.arcLast Updated: 2009-05-11

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Alternate Designations
 1991 RG4 = 1997 EP1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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