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20156 Herbwindolf (1996 TU11)
Classification: Main-belt Asteroid          SPK-ID: 2020156
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2456800.5 (2014-May-23.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09674207423147191 7.3416e-08  
a 2.272609345270096 1.4597e-08 AU
q 2.05275240329084 1.7139e-07 AU
i 7.975531242389002 7.2423e-06 deg
node 70.84739651240878 4.984e-05 deg
peri 342.4748677393633 6.0861e-05 deg
M 30.42574038712038 3.5569e-05 deg
tp 2456694.739312890325
(2014-Feb-06.23931289)
0.00012337 JED
period 1251.369625687077
3.43
1.2056e-05
3.301e-08
d
yr
n .2876847836244533 2.7717e-09 deg/d
Q 2.492466287249353 1.6009e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      607  
   data-arc span      6350 days (17.39 yr)  
   first obs. used      1996-10-13  
   last obs. used      2014-03-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .57793  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-09 22:38:00  

Additional Information
 Earth MOID = 1.06477 AU 
 T_jup = 3.592 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.1 mag n/a MPO233633  

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 | Physical Parameters | Discovery Circumstances ]
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