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16552 Sawamura (1991 SB)
Classification: Main-belt Asteroid          SPK-ID: 2016552
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 4 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1324211225986739 6.0681e-08  
a 2.421258510610076 1.9402e-08 AU
q 2.100632740533497 1.432e-07 AU
i 2.49146409262625 6.5366e-06 deg
node 216.4388104587941 0.00011849 deg
peri 180.1620265362526 0.00012047 deg
M 34.21736180304686 2.0992e-05 deg
tp 2456869.701070864366
(2014-Jul-31.20107086)
7.9962e-05 JED
period 1376.13223251581
3.77
1.6541e-05
4.529e-08
d
yr
n .2616027671569449 3.1445e-09 deg/d
Q 2.741884280686656 2.1972e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1102  
   data-arc span      10857 days (29.72 yr)  
   first obs. used      1984-12-28  
   last obs. used      2014-09-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .51187  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Oct-09 14:32:49  

Additional Information
 Earth MOID = 1.10734 AU 
 T_jup = 3.500 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.1 mag n/a MPO266043  

16552 Sawamura           Discovered 1991 Sept. 16 by K. Endate and K. Watanabe at Kitami.
Tsuneo Sawamura (b. 1928) invented a new anti-corrosion solder in Japan. It is being used by NASA for the electrical systems in space shuttles.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20060219/MPCPages.arcLast Updated: 2010-06-03

[ show close-approach data ]
Alternate Designations
 1991 SB = 1984 YG5 = 1997 EU54 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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