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266889 (2009 WW46)
Classification: Main-belt Asteroid          SPK-ID: 2266889
[ 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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05405958231731649 5.2422e-08  
a 2.981804572817365 3.5631e-08 au
q 2.820609463058994 1.4867e-07 au
i 10.17200543019032 5.1798e-06 deg
node 90.79142951978689 2.978e-05 deg
peri 165.8926733181706 5.8407e-05 deg
M 171.7631097163737 5.2872e-05 deg
tp 2458103.185708065995
(2017-Dec-15.68570807)		 0.00027258 TDB
period 1880.689896856519
5.15		 3.371e-05
9.229e-08		 d
yr
n .1914191173152588 3.4311e-09 deg/d
Q 3.142999682575736 3.7558e-08 au
   Orbit Determination Parameters
   # obs. used (total)      334  
   data-arc span      7188 days (19.68 yr)  
   first obs. used      2001-02-16  
   last obs. used      2020-10-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56694  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-11 22:22:53  

Additional Information
 Earth MOID = 1.8063 au 
 Jupiter MOID = 1.91578 au 
 T_jup = 3.233 
[ 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 15.2   n/a MPO454983  

266889 (2009 WW46)          Discovered 2009-Nov-18 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20110218/Numbers.arcLast Updated: 2011-02-22

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Alternate Designations
 2009 WW46 = 2006 DJ64 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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