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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0965093452988216 3.8389e-08  
a 2.273197503949699 8.0502e-09 au
q 2.053812701108598 8.6689e-08 au
i 7.973792183657155 4.4261e-06 deg
node 70.80492669517905 2.8854e-05 deg
peri 342.1954305853632 3.7056e-05 deg
M 188.6275624373717 2.514e-05 deg
tp 2459196.426441857891
(2020-Dec-12.92644186)
8.8987e-05 TDB
period 1251.855444901629
3.43
6.6499e-06
1.821e-08
d
yr
n .287573139108157 1.5276e-09 deg/d
Q 2.4925823067908 8.8271e-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 = 1.06652 au 
 Jupiter MOID = 2.79753 au 
 T_jup = 3.592 
[ 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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