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13163 Koyamachuya (1995 UC45)
Classification: Main-belt Asteroid          SPK-ID: 2013163
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.

Note: If the applet has stopped working because of a recent Java upgrade, here is a possible workaround.
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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07015164946264468 8.2467e-08  
a 2.282622560207434 1.7126e-08 au
q 2.122492822508237 1.9617e-07 au
i 10.57509389981598 6.7399e-06 deg
node 41.67125334638079 3.8866e-05 deg
peri 304.4813756249493 5.9889e-05 deg
M 58.90553743044744 4.5562e-05 deg
tp 2457394.388033589619
0.00015936 JED
period 1259.649111857254
n .2857938743506184 3.2164e-09 deg/d
Q 2.44275229790663 1.8328e-08 au
  Orbit Determination Parameters
   # obs. used (total)      946  
   data-arc span      12961 days (35.49 yr)  
   first obs. used      1980-05-17  
   last obs. used      2015-11-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .49321  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Nov-30 16:13:59  

Additional Information
 Earth MOID = 1.13579 au 
 Jupiter MOID = 2.79617 au 
 T_jup = 3.579 
[ 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 13.5 mag n/a MPO302147  

13163 Koyamachuya           Discovered 1995 Oct. 28 by K. Endate and K. Watanabe at Kitami.
Japanese cartoonist Chuya Koyama (b. 1978) created Ucyu Kyodai ("Brothers Fascinated by Cosmos"), a scientific comic featuring the universe and the future. He has won numerous awards.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20091202/MPCPages.arcLast Updated: 2010-04-12

[ show close-approach data ]
Alternate Designations
 1995 UC45 = 1980 KY 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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