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32809 Sommerfeld (1990 TJ10)
Classification: Main-belt Asteroid          SPK-ID: 2032809
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0930126305628703 5.021e-08  
a 2.994461494604394 2.3069e-08 au
q 2.715938753872015 1.5415e-07 au
i 8.418501370816353 5.3617e-06 deg
node 357.2338602669518 3.3391e-05 deg
peri 332.2162022739286 4.3157e-05 deg
M 343.104068791194 3.1164e-05 deg
tp 2459289.329283302574
(2021-Mar-15.82928330)
0.00016442 TDB
period 1892.67709448649
5.18
2.1871e-05
5.988e-08
d
yr
n .1902067716932312 2.198e-09 deg/d
Q 3.272984235336773 2.5215e-08 au
  Orbit Determination Parameters
   # obs. used (total)      839  
   data-arc span      10929 days (29.92 yr)  
   first obs. used      1990-09-16  
   last obs. used      2020-08-18  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .59853  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 07:14:34  

Additional Information
 Earth MOID = 1.70699 au 
 Jupiter MOID = 2.09535 au 
 T_jup = 3.232 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.31   n/a E2021B10  
diameter diameter 3.712 km 0.951 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.203   0.094 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

32809 Sommerfeld           Discovered 1990 Oct. 10 by F. Borngen and L. D. Schmadel at Tautenburg.
Arnold Sommerfeld (1868-1951), a longtime professor in Munich, taught many renowned physicists. He extended the atomic model of Bohr, wave mechanics and the theory of electrons in metals. His textbook Atomic Structure and Spectral Lines (1919-1929) was a standard for decades.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20020427/MPCPages.arcLast Updated: 2003-10-02

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Alternate Designations
 1990 TJ10 = 2000 QA56 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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