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13918 Tsukinada (1984 QB)
Classification: Main-belt Asteroid          SPK-ID: 2013918
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbit Diagram
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 2-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 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2160552026649086 7.7739e-08  
a 2.620366446119156 1.9144e-08 au
q 2.054222642546555 2.0185e-07 au
i 10.17037436187553 7.6753e-06 deg
node 310.4160317802642 2.8493e-05 deg
peri 354.4606777174641 3.2775e-05 deg
M 215.2373396623412 2.457e-05 deg
tp 2458223.510729578881
0.00011118 JED
period 1549.321227761738
n .2323598189641293 2.5464e-09 deg/d
Q 3.186510249691756 2.328e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1336  
   data-arc span      23988 days (65.68 yr)  
   first obs. used      1950-08-14  
   last obs. used      2016-04-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .50658  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Apr-25 13:17:55  

Additional Information
 Earth MOID = 1.03904 au 
 Jupiter MOID = 2.07032 au 
 T_jup = 3.350 
[ 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 12.8 mag n/a MPO358766  

13918 Tsukinada           Discovered 1984 Aug. 24 by T. Seki at Geisei.
The sea off the town of Otsuki, Kochi prefecture, is well known for coral products. Underwater corals make the sea of Tsukinada appear pinkish. Its beauty attracts tourists and is also sung of in a folksong.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20091004/MPCPages.arcLast Updated: 2009-10-06

[ show close-approach data ]
Alternate Designations
 1984 QB = 1950 PO 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
FirstGov 2016-May-01 21:17 UT
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