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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05385138881867758 4.467e-08  
a 2.982361821574685 3.0572e-08 au
q 2.821757495523087 1.3401e-07 au
i 10.17117284843852 4.9754e-06 deg
node 90.79169704414069 2.479e-05 deg
peri 165.9681467440217 5.5101e-05 deg
M 209.9531286543318 5.28e-05 deg
tp 2459984.585399844616
(2023-Feb-09.08539984)		 0.00028084 TDB
period 1881.217125106092
5.15		 2.8926e-05
7.92e-08		 d
yr
n .1913654703625439 2.9425e-09 deg/d
Q 3.142966147626283 3.2218e-08 au
   Orbit Determination Parameters
   # obs. used (total)      409  
   data-arc span      7275 days (19.92 yr)  
   first obs. used      2001-02-16  
   last obs. used      2021-01-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52618  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 14:15:20  

Additional Information
 Earth MOID = 1.80572 au 
 Jupiter MOID = 1.91478 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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