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JPL Small-Body Database Browser
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20156 Herbwindolf (1996 TU11)
Classification: Main-belt Asteroid          SPK-ID: 2020156
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09627495375618607 3.8357e-08  
a 2.272162504976195 8.0869e-09 au
q 2.053410164883072 8.6549e-08 au
i 7.971135723000268 4.4254e-06 deg
node 70.79164973456633 2.8878e-05 deg
peri 342.6804390504408 3.7122e-05 deg
M 303.1507635758371 2.552e-05 deg
tp 2459198.051187771812
(2020-Dec-14.55118777)
8.9197e-05 TDB
period 1251.000577513906
3.43
6.6787e-06
1.829e-08
d
yr
n .2877696513261588 1.5363e-09 deg/d
Q 2.490914845069318 8.8654e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1083  
   data-arc span      8346 days (22.85 yr)  
   first obs. used      1996-10-13  
   last obs. used      2019-08-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53279  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 01:29:21  

Additional Information
 Earth MOID = 1.06655 au 
 Jupiter MOID = 2.7961 au 
 T_jup = 3.593 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.2   n/a MPO337428  

20156 Herbwindolf           Discovered 1996 Oct. 13 by P. G. Comba at Prescott.
Herbert Windolf of Prescott, Arizona, is a very dear and generous friend who was particularly helpful and supportive during the long terminal illness of the discoverer's wife. Windolf is widely interested in scientific matters and a great enthusiast for space exploration.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20020526/MPCPages.arcLast Updated: 2003-10-02
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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