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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1324211386688401 5.8648e-08  
a 2.421258500719035 1.6898e-08 AU
q 2.100632693042212 1.3562e-07 AU
i 2.491464743539374 5.7747e-06 deg
node 216.4388000572421 0.000109 deg
peri 180.162033371844 0.00011113 deg
M 34.21737039162542 1.93e-05 deg
tp 2456869.701038835243
(2014-Jul-31.20103884)
7.38e-05 JED
period 1376.132224083389
3.77
1.4406e-05
3.944e-08
d
yr
n .2616027687599482 2.7386e-09 deg/d
Q 2.741884308395858 1.9136e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1132  
   data-arc span      10980 days (30.06 yr)  
   first obs. used      1984-12-28  
   last obs. used      2015-01-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .51358  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Feb-04 13:46:30  

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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