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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1445568735151966 2.2012e-07  
a 2.566708793980207 3.6315e-08 au
q 2.195673395498468 5.9308e-07 au
i 6.379155433780483 9.9134e-06 deg
node 27.91113961484715 3.3987e-05 deg
peri 11.54246245870323 7.0134e-05 deg
M 36.80206368565857 5.5024e-05 deg
tp 2458846.955948309728
(2019-Dec-29.45594831)
0.00022682 TDB
period 1501.977146733719
4.11
3.1876e-05
8.727e-08
d
yr
n .2396840729453678 5.0867e-09 deg/d
Q 2.937744192461947 4.1564e-08 au
  Orbit Determination Parameters
   # obs. used (total)      266  
   data-arc span      5406 days (14.80 yr)  
   first obs. used      2005-04-10  
   last obs. used      2020-01-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58928  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-26 11:11:13  

Additional Information
 Earth MOID = 1.20369 au 
 Jupiter MOID = 2.48248 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 17.1   n/a MPO503583  

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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