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JPL Small-Body Database Browser
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441859 (2009 WU171)
Classification: Main-belt Asteroid          SPK-ID: 2441859
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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1590873650229562 8.3665e-08  
a 2.178868824029991 2.8129e-08 au
q 1.832238324084393 1.9629e-07 au
i 4.349463153252207 9.0129e-06 deg
node 285.6231268413528 9.3786e-05 deg
peri 79.86719401310438 0.00010014 deg
M 136.2695427040805 4.2962e-05 deg
tp 2458555.826394327039
(2019-Mar-13.32639433)
0.00013325 TDB
period 1174.748919425797
3.22
2.2749e-05
6.228e-08
d
yr
n .3064484623454378 5.9344e-09 deg/d
Q 2.52549932397559 3.2604e-08 au
  Orbit Determination Parameters
   # obs. used (total)      98  
   data-arc span      4796 days (13.13 yr)  
   first obs. used      2006-12-13  
   last obs. used      2020-01-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59469  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-26 10:37:56  

Additional Information
 Earth MOID = .836339 au 
 Jupiter MOID = 2.94992 au 
 T_jup = 3.662 
[ 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 18.4   n/a MPO402743  

441859 (2009 WU171)          Discovered 2006-Dec-13 by Spacewatch at Kitt Peak
Reference: Last Updated: 2015-09-02

Alternate Designations
 2009 WU171 = 2006 YT24 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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