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90826 Xuzhihong (1995 TL1)
Classification: Main-belt Asteroid          SPK-ID: 2090826
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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05445756985973105 6.5144e-08  
a 2.686144520314865 2.7498e-08 au
q 2.539863617446485 1.7416e-07 au
i 14.6882295223066 9.1031e-06 deg
node 198.2427284700155 2.8171e-05 deg
peri 264.0687178772838 0.00010007 deg
M 174.4842038252866 9.2242e-05 deg
tp 2456821.125657217159
0.00041331 JED
period 1608.023862622924
n .2238772746896845 3.4377e-09 deg/d
Q 2.832425423183246 2.8996e-08 au
  Orbit Determination Parameters
   # obs. used (total)      448  
   data-arc span      7211 days (19.74 yr)  
   first obs. used      1995-10-14  
   last obs. used      2015-07-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .62458  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Sep-02 16:58:53  

Additional Information
 Earth MOID = 1.60381 au 
 Jupiter MOID = 2.28166 au 
 T_jup = 3.325 
[ 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 15.1 mag n/a MPO280374  

90826 Xuzhihong           Discovered 1995 Oct. 14 by the Beijing Schmidt CCD Asteroid Program at Xinglong.
Chinese botanist Xu Zhihong (b. 1942) steadfastly and effectively supported the development of Chinese astronomy during the periods when he was president of Beijing University and vice president of the Chinese Academy of Sciences.
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
 1995 TL1 = 1995 UZ10 = 2000 WO121 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
FirstGov 2016-May-06 16:49 UT
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