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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 2456800.5 (2014-May-23.0) TDB
Reference: JPL 2 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1324112844921291 6.4073e-08  
a 2.421187031229322 1.7903e-08 AU
q 2.100594546428562 1.5183e-07 AU
i 2.491490858932897 6.8634e-06 deg
node 216.4398912129973 0.00012186 deg
peri 180.1183183105158 0.00012408 deg
M 341.9285547191792 2.186e-05 deg
tp 2456869.576658617358
(2014-Jul-31.07665862)
8.366e-05 JED
period 1376.071294565519
3.77
1.5262e-05
4.179e-08
d
yr
n .2616143519756122 2.9016e-09 deg/d
Q 2.741779516030081 2.0273e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1074  
   data-arc span      10413 days (28.51 yr)  
   first obs. used      1984-12-28  
   last obs. used      2013-07-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .54529  
   data source      ORB  
   producer      Otto Matic  
   solution date      2013-Aug-05 18:27:08  

Additional Information
 Earth MOID = 1.10627 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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