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19366 Sudingqiang (1997 VZ7)
Classification: Main-belt Asteroid          SPK-ID: 2019366
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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1657115646828088 4.4947e-08  
a 2.68658547160016 1.6018e-08 au
q 2.241387189447196 1.2074e-07 au
i 13.82790928715135 4.5069e-06 deg
node 47.22979765240294 2.5601e-05 deg
peri 339.9913353079191 3.1788e-05 deg
M 115.1200577607577 1.9019e-05 deg
tp 2457086.162821971660
8.3894e-05 JED
period 1608.419833101581
n .2238221592342575 2.0017e-09 deg/d
Q 3.131783753753125 1.8672e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1209  
   data-arc span      22268 days (60.97 yr)  
   first obs. used      1955-04-24  
   last obs. used      2016-04-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .46317  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Apr-25 13:32:16  

Additional Information
 Earth MOID = 1.25061 au 
 Jupiter MOID = 2.31273 au 
 T_jup = 3.313 
[ 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 12.9 mag n/a MPO309306  

19366 Sudingqiang           Discovered 1997 Nov. 6 by the Beijing Schmidt CCD Asteroid Program at Xinglong.
Su Ding-qiang (b. 1936), an astronomer and optical engineering expert, made many creative contributions to Chinese astronomical instruments, including a new idea to apply active optics to obtain the shape of a changeable optical system that could not be realized in the conventional way.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20090209/MPCPages.arcLast Updated: 2009-02-11

[ show close-approach data ]
Alternate Designations
 1997 VZ7 = 1988 VZ12 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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