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7056 Kierkegaard (1989 SE2)
Classification: Main-belt Asteroid          SPK-ID: 2007056
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04782057306026709 3.1584e-08  
a 2.809225791053039 1.2353e-08 au
q 2.6748870038692 9.0324e-08 au
i 5.250924382730103 3.3339e-06 deg
node 75.82252970343782 4.2981e-05 deg
peri 165.0664995275475 5.9102e-05 deg
M 314.7091230100395 4.0402e-05 deg
tp 2459216.864809546258
(2021-Jan-02.36480955)
0.00019295 TDB
period 1719.80179261971
4.71
1.1344e-05
3.106e-08
d
yr
n .2093264477016421 1.3807e-09 deg/d
Q 2.943564578236877 1.2944e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2518  
   data-arc span      11173 days (30.59 yr)  
   first obs. used      1989-09-26  
   last obs. used      2020-04-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46886  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 02:42:04  

Additional Information
 Earth MOID = 1.66224 au 
 Jupiter MOID = 2.0481 au 
 T_jup = 3.314 
[ 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 12.9   n/a MPO384819  
diameter diameter 7.582 km 0.093 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.233   0.045 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
SMASSII spectral type spec_B Sq   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002)

7056 Kierkegaard           Discovered 1989 Sept. 26 by E. W. Elst at the European Southern Observatory.
Named in memory of the great Danish religious philosopher Søren Kierkegaard (1813-1855), known as the "father of existentialism". All his life he suffered from the influence of the overpowering personality of his father, who educated him in strict adherence to orthodox Lutheranism. His unfortunate relationship with Regine Olsen also severely influenced his life and writings. Kierkegaard believed in the necessity for each individual to make a fully conscious, responsible choice among the alternatives that life offers. His well-known Fear and Trembling and Repetition dealt with faith and the idea of sacrifice. In The Sickness unto Death he anticipated aspects of Freudian psychoanalysis. He made also severe attacks on Hegel's attempt to systematize the whole of existence.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 19961224/MPCPages.arcLast Updated: 2003-09-26

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Alternate Designations
 1989 SE2 = 1991 AV 
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