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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09635434437649229 3.5873e-08  
a 2.272235259620625 5.9018e-09 au
q 2.053295520910731 8.2573e-08 au
i 7.971044395873669 3.7236e-06 deg
node 70.79173720132707 2.2936e-05 deg
peri 342.7274629034749 2.8605e-05 deg
M .6680011470968665 1.6097e-05 deg
tp 2459198.178583449051
(2020-Dec-14.67858345)
5.5941e-05 TDB
period 1251.060663553469
3.43
4.8742e-06
1.334e-08
d
yr
n .2877558303027997 1.1211e-09 deg/d
Q 2.491174998330519 6.4704e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1564  
   data-arc span      8901 days (24.37 yr)  
   first obs. used      1996-10-13  
   last obs. used      2021-02-25  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47663  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 03:14:19  

Additional Information
 Earth MOID = 1.06567 au 
 Jupiter MOID = 2.79574 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 15.33   n/a E2021B10  

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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