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243865 (2000 WX172)
Classification: Main-belt Asteroid          SPK-ID: 2243865
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbit Diagram
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Note: This Java-based orbit viewer will eventually be retired.

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 two-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 is not working, here are some notes that might help.
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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3012869045162279 6.1081e-08  
a 2.616858477987249 2.2858e-08 au
q 1.828433287597424 1.6223e-07 au
i 16.06630727507033 1.4779e-05 deg
node 293.4451121226972 3.0189e-05 deg
peri 102.3890140609991 4.5493e-05 deg
M 260.0054581714408 3.1091e-05 deg
tp 2459429.979634943062
0.00013727 TDB
period 1546.21108064664
n .2328272022532943 3.0506e-09 deg/d
Q 3.405283668377075 2.9745e-08 au
  Orbit Determination Parameters
   # obs. used (total)      299  
   data-arc span      6316 days (17.29 yr)  
   first obs. used      2000-11-25  
   last obs. used      2018-03-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59138  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 04:18:24  

Additional Information
 Earth MOID = .912334 au 
 Jupiter MOID = 2.31 au 
 T_jup = 3.288 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.7   n/a MPO291696  

243865 (2000 WX172)          Discovered 2000-Nov-25 by LONEOS at Anderson Mesa
Reference: 20100726/Numbers.arcLast Updated: 2010-07-28

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1991-May-16 13:33 00:01 Iris 0.00816391994884227 0.008160396940391 0.00816745336394243 4.27827123453752 4.27827106994656 2448393.064293281 1.4731726470594 523.409087028974 63.7796063953904 -71.6114883502349 18175.8709777082 T 12 CATAB v2.0e-lin.ifort 2019-Jul-13 04:18:31 2019-Jul-13 04:18
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
FirstGov 2020-Oct-26 07:01 UT
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