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4604 Stekarstrom (1987 SK)
Classification: Main-belt Asteroid          SPK-ID: 2004604
[ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

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Orbital Elements at Epoch 2456400.5 (2013-Apr-18.0) TDB
Reference: MPO240232 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e 0.1284976 n/a  
a 2.1747437 n/a AU
q 1.8952944 n/a AU
i 1.40974 n/a deg
node 0.09140 n/a deg
peri 355.27272 n/a deg
M 357.50216 n/a deg
tp 2456408.6277935
(2013-Apr-26.12779350)		 n/a JED
period 1171.4143657
3.21		 n/a
n/a		 d
yr
n 0.30732080 n/a deg/d
Q 2.4541930 n/a AU
   Orbit Determination Parameters
   # obs. used (total)      1120  
   first obs. used      1971-??-??  
   last obs. used      2012-09-08  
   # oppositions      17  
   planetary ephem.      DE403  
   condition code      0  
   fit RMS      0.56  
   data source      MPC:mpn  
   producer      MPCLINUX  

Additional Information
 T_jup = 3.675 

[ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.1 mag n/a PDS3 (MPC 28112)  
SMASSII spectral type spec_B S   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)

4604 Stekarstrom           Discovered 1987 Sept. 18 by K. Suzuki and T. Urata at Toyota.
Stephen E. (b. 1942) and Karen M. Strom (b. 1941) are American astronomers and photographers, well known for their research on the formation of stars and planetary systems and for their photography of the U.S. southwest culture and desert landscape. The name was suggested by E. Mamajek.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20090409/MPCPages.arcLast Updated: 2009-04-10

Alternate Designations
 1987 SK = 1971 TC1 = 1979 BC2 = 1984 UY 
[ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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