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266888 (2009 WU45)
Classification: Main-belt Asteroid          SPK-ID: 2266888
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07899224459037475 4.1874e-08  
a 2.657460974144503 2.4476e-08 au
q 2.447542166885504 1.1429e-07 au
i 3.224179690942817 5.6362e-06 deg
node 355.1168348810193 7.4089e-05 deg
peri 297.0220648779596 8.1038e-05 deg
M 244.787830270427 3.4173e-05 deg
tp 2459506.901081864741
(2021-Oct-19.40108186)
0.00015237 TDB
period 1582.336222807131
4.33
2.1861e-05
5.985e-08
d
yr
n .2275116974579175 3.1432e-09 deg/d
Q 2.867379781403501 2.6409e-08 au
  Orbit Determination Parameters
   # obs. used (total)      292  
   data-arc span      6222 days (17.03 yr)  
   first obs. used      2003-04-05  
   last obs. used      2020-04-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50506  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 15:25:53  

Additional Information
 Earth MOID = 1.43355 au 
 Jupiter MOID = 2.26519 au 
 T_jup = 3.381 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.5   n/a MPO423026  

266888 (2009 WU45)          Discovered 2009-Nov-18 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20110218/Numbers.arcLast Updated: 2011-02-22

[ show close-approach data ]
Alternate Designations
 2009 WU45 = 2005 UJ175 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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