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JPL Small-Body Database Browser
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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06014996425187639 1.8648e-07  
a 2.2385013329488 1.5948e-07 au
q 2.103855557794152 3.361e-07 au
i 6.551518299534918 1.0022e-05 deg
node 239.176721178243 0.00013597 deg
peri 262.8687367318261 0.00050586 deg
M 208.7088053201826 0.00059404 deg
tp 2459114.597644975797
(2020-Sep-22.09764498)
0.002072 TDB
period 1223.304188872112
3.35
0.00013073
3.579e-07
d
yr
n .2942849401438905 3.145e-08 deg/d
Q 2.373147108103448 1.6908e-07 au
  Orbit Determination Parameters
   # obs. used (total)      37  
   data-arc span      4166 days (11.41 yr)  
   first obs. used      2004-03-16  
   last obs. used      2015-08-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      1  
   norm. resid. RMS      .54859  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-09 12:34:17  

Additional Information
 Earth MOID = 1.12882 au 
 Jupiter MOID = 2.65176 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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