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71885 Denning (2000 WD)
Classification: Main-belt Asteroid          SPK-ID: 2071885
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

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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 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1158551371300107 5.7946e-08  
a 2.293254801176537 1.566e-08 au
q 2.027569451712174 1.3164e-07 au
i 5.896768838094646 6.2149e-06 deg
node 231.4802552527789 6.1984e-05 deg
peri 221.6520643786518 6.8346e-05 deg
M 162.0530158073638 2.7797e-05 deg
tp 2457029.506044444711
9.7002e-05 JED
period 1268.460342905655
n .2838086362048577 2.9071e-09 deg/d
Q 2.5589401506409 1.7474e-08 au
  Orbit Determination Parameters
   # obs. used (total)      498  
   data-arc span      7209 days (19.74 yr)  
   first obs. used      1995-05-27  
   last obs. used      2015-02-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .54139  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Apr-07 18:59:02  

Additional Information
 Earth MOID = 1.0467 au 
 Jupiter MOID = 2.62247 au 
 T_jup = 3.581 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.7 mag n/a MPO324931  

71885 Denning           Discovered 2000 Nov. 16 by Spacewatch at Kitt Peak.
British amateur astronomer William Frederick Denning (1848-1931) was renowned for his visual study of the heights and velocities of meteors and for his catalogues of meteor radiants. He also maintained an interest in Jupiter's red spot and discovered five comets, two of them of short period.
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
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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