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441858 (2009 WS169)
Classification: Main-belt Asteroid          SPK-ID: 2441858
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 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06005093224434913 1.0326e-07  
a 2.238984276600488 2.6618e-08 au
q 2.104531183510189 2.44e-07 au
i 6.550956740574941 8.9832e-06 deg
node 239.1772550450621 8.0248e-05 deg
peri 262.6362502945515 0.00011856 deg
M 326.627812724864 9.5447e-05 deg
tp 2459113.937635050037
(2020-Sep-21.43763505)
0.00032508 TDB
period 1223.700091376371
3.35
2.1821e-05
5.974e-08
d
yr
n .2941897304224974 5.2461e-09 deg/d
Q 2.373437369690787 2.8216e-08 au
  Orbit Determination Parameters
   # obs. used (total)      67  
   data-arc span      5712 days (15.64 yr)  
   first obs. used      2004-03-16  
   last obs. used      2019-11-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56002  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-05 02:10:41  

Additional Information
 Earth MOID = 1.12908 au 
 Jupiter MOID = 2.65033 au 
 T_jup = 3.625 
[ 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 18.2   n/a MPO241977  

441858 (2009 WS169)          Discovered 2009-Oct-24 by Spacewatch at Kitt Peak
Reference: Last Updated: 2015-09-02
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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