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JPL Small-Body Database Browser
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447896 (2007 WD39)
Classification: Main-belt Asteroid          SPK-ID: 2447896
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1443040806323635 2.3834e-07  
a 2.566102829937336 3.941e-08 au
q 2.195803720255122 6.4235e-07 au
i 6.379786259898742 1.0068e-05 deg
node 27.91334629142316 3.6122e-05 deg
peri 11.53669139867592 7.4902e-05 deg
M 300.9081828006981 5.7947e-05 deg
tp 2458846.953139674069
(2019-Dec-29.45313967)
0.00024656 TDB
period 1501.44528443632
4.11
3.4589e-05
9.47e-08
d
yr
n .23976897708607 5.5236e-09 deg/d
Q 2.936401939619549 4.5098e-08 au
  Orbit Determination Parameters
   # obs. used (total)      249  
   data-arc span      5314 days (14.55 yr)  
   first obs. used      2005-04-10  
   last obs. used      2019-10-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5843  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 16:24:12  

Additional Information
 Earth MOID = 1.20321 au 
 Jupiter MOID = 2.48236 au 
 T_jup = 3.409 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 17.2   n/a MPO409031  

447896 (2007 WD39)          Discovered 2007-Aug-24 by Spacewatch at Kitt Peak
Reference: Last Updated: 2015-10-28
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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