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14163 Johnchapman (1998 TY20)
Classification: Main-belt Asteroid          SPK-ID: 2014163
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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07554251238781715 6.1791e-08  
a 2.878992921434582 2.7592e-08 AU
q 2.661506563002672 1.7707e-07 AU
i .7954999712789073 6.3084e-06 deg
node 294.5359249036465 0.00049794 deg
peri 147.2290977635078 0.0005004 deg
M 64.82160228514348 4.7392e-05 deg
tp 2456679.225257917680
0.00023465 JED
period 1784.26486036034
n .2017637672510663 2.9005e-09 deg/d
Q 3.096479279866491 2.9676e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      647  
   data-arc span      7808 days (21.38 yr)  
   first obs. used      1993-10-12  
   last obs. used      2015-02-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .53126  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Mar-09 14:37:40  

Additional Information
 Earth MOID = 1.67705 AU 
 T_jup = 3.291 
[ 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 14.6 mag n/a MPO244312  

14163 Johnchapman           Discovered 1998 Oct. 13 by Spacewatch at Kitt Peak.
John Herbert Chapman (1921-1979) began his career researching radio propagation and the ionosphere. He worked on the Alouette, ISIS and Hermes satellite projects and was known as the "Father of the Canadian Space Program".
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20030614/MPCPages.arcLast Updated: 2005-04-26

[ show close-approach data ]
Alternate Designations
 1998 TY20 = 1996 HP13 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
FirstGov 2015-Mar-30 10:39 UT
(server date/time)  
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