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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 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09729162013166338 6.1662e-08  
a 2.272011332674833 1.226e-08 au
q 2.050963669161399 1.4091e-07 au
i 7.974129838955671 5.9478e-06 deg
node 70.81175186482446 4.8887e-05 deg
peri 342.2424173297429 5.9428e-05 deg
M 203.2984528028197 3.5645e-05 deg
tp 2457944.983784697082
(2017-Jul-10.48378470)
0.00012574 JED
period 1250.875731586117
3.42
1.0125e-05
2.772e-08
d
yr
n .2877983726996751 2.3296e-09 deg/d
Q 2.493058996188267 1.3453e-08 au
  Orbit Determination Parameters
   # obs. used (total)      739  
   data-arc span      6852 days (18.76 yr)  
   first obs. used      1996-10-13  
   last obs. used      2015-07-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .57424  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Sep-02 14:54:20  

Additional Information
 Earth MOID = 1.063 au 
 Jupiter MOID = 2.80482 au 
 T_jup = 3.593 
[ 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 15.2 mag 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 | Physical Parameters | Discovery Circumstances ]
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