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8432 Tamakasuga (1997 YD18)
Classification: Main-belt Asteroid          SPK-ID: 2008432
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbit Diagram
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Note: This Java-based orbit viewer will eventually be retired.

Note: Make sure you have Java enabled on your browser to see the applet. This applet is provided as a 3D orbit visualization tool. The applet was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances. For accurate long-term ephemerides, please instead use our Horizons system.

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Orbit Viewer

Additional Notes: the orbits shown in the applet are color coded. The planets are white lines, and the asteroid/comet is a blue line. The bright white line indicates the portion of the orbit that is above the ecliptic plane, and the darker portion is below the ecliptic plane. Likewise for the asteroid/comet orbit, the light blue indicates the portion above the ecliptic plane, and the dark blue the portion below the ecliptic plane.

Orbit Viewer applet originally written and kindly provided by Osamu Ajiki (AstroArts), and further modified by Ron Baalke (JPL).

Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1635745098379168 3.9089e-08  
a 3.173335136915729 1.7909e-08 au
q 2.6542583973433 1.2782e-07 au
i 2.348798106946388 4.2783e-06 deg
node 86.29599529185987 0.00010188 deg
peri 78.78155213461089 0.00010274 deg
M 313.8078781477429 1.4388e-05 deg
tp 2459265.434032012666
8.3484e-05 TDB
period 2064.773119312752
n .1743532965596839 1.4759e-09 deg/d
Q 3.692411876488158 2.0838e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1783  
   data-arc span      16011 days (43.84 yr)  
   first obs. used      1976-04-02  
   last obs. used      2020-02-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48384  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 18:54:14  

Additional Information
 Earth MOID = 1.66303 au 
 Jupiter MOID = 1.28503 au 
 T_jup = 3.179 
[ 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 13.5   n/a MPO416805  
diameter diameter 11.156 km 0.134 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  
rotation period rot_per 12.08 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 [Result based on fragmentary lightcurve(s), may be completely wrong.]
geometric albedo albedo 0.071   0.004 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  

8432 Tamakasuga           Discovered 1997 Dec. 27 by A. Nakamura at Kuma Kogen.
Named in honor of Ryoji Matsumoto (b. 1972), Japanese sumo wrestler whose professional name is Tamakasuga. Born in Ehime prefecture, where this minor planet was discovered, he became a professional wrestler in 1994. In 1996 he was promoted to "Makunouchi", the top division in the official listing of rank. Famous for his powerful "tsuki-oshi", or pushing-thrusting style, Tamakasuga has won the Outstanding Performance Award, the Technique Prize and the Fighting Spirit Prize (twice) in his 26 tournaments.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 19980610/MPCPages.arcLast Updated: 2009-11-17

[ show close-approach data ]
Alternate Designations
 1997 YD18 = 1976 GV5 = 1981 AQ1 = 1987 CD = 1993 FL36 = 1994 NX9 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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