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17437 Stekene (1989 SC4)
Classification: Main-belt Asteroid          SPK-ID: 2017437
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 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05254156364072284 3.9445e-08  
a 3.163646515057471 1.9873e-08 au
q 2.997423580349828 1.2439e-07 au
i 21.53328552351374 5.2392e-06 deg
node 191.5433711471629 1.0567e-05 deg
peri 319.1548318756403 4.7324e-05 deg
M 38.84933071327893 4.5192e-05 deg
tp 2458778.700074520084
(2019-Oct-22.20007452)
0.00025822 TDB
period 2055.32429276773
5.63
1.9366e-05
5.302e-08
d
yr
n .1751548411444205 1.6504e-09 deg/d
Q 3.329869449765115 2.0917e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1815  
   data-arc span      11221 days (30.72 yr)  
   first obs. used      1989-09-26  
   last obs. used      2020-06-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50735  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 18:09:48  

Additional Information
 Earth MOID = 2.02357 au 
 Jupiter MOID = 1.67149 au 
 T_jup = 3.093 
[ 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 13.0   n/a MPO502302  
diameter diameter 13.992 km 2.072 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.075   0.019 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

17437 Stekene           Discovered 1989 Sept. 26 by E. W. Elst at the European Southern Observatory.
Stekene is a town in East-Flanders. Its church has a tower from the thirteenth century.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: MPC batch dated 2017-11-04Last Updated: 2017-11-07

[ show close-approach data ]
Alternate Designations
 1989 SC4 = 1995 WN42 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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