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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05371955143480873 4.3713e-08  
a 2.982513827884271 3.0112e-08 au
q 2.822294522902214 1.3216e-07 au
i 10.17031078225943 4.8944e-06 deg
node 90.78872821531459 2.4129e-05 deg
peri 166.0211337235044 5.4892e-05 deg
M 247.394140947177 5.3131e-05 deg
tp 2459984.978516868767
(2023-Feb-09.47851687)
0.00028142 TDB
period 1881.36095097305
5.15
2.8492e-05
7.801e-08
d
yr
n .1913508408972802 2.8979e-09 deg/d
Q 3.142733132866329 3.173e-08 au
  Orbit Determination Parameters
   # obs. used (total)      432  
   data-arc span      7390 days (20.23 yr)  
   first obs. used      2001-02-16  
   last obs. used      2021-05-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52137  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 04:46:11  

Additional Information
 Earth MOID = 1.80798 au 
 Jupiter MOID = 1.91383 au 
 T_jup = 3.233 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457899.5 (2017-May-26.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05541816230688602 4.3636e-08  
q 2.817918234936681 1.3227e-07 au
tp 2458101.088038212661
(2017-Dec-13.58803821)
0.00026312 TDB
node 90.81437293850873 2.4147e-05 deg
peri 165.3719026072507 5.3669e-05 deg
i 10.16655578276776 4.8926e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      432  
   data-arc span      7390 days (20.23 yr)  
   first obs. used      2001-02-16  
   last obs. used      2021-05-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52137  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 04:46:11  

Additional Information
 Jupiter MOID = 1.91383 au 
 T_jup = 3.233 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.904071893998182E-15 -5.634467367917295E-15 4.502442919461052E-13 -9.378699507176063E-16 6.248877926918942E-14 2.802195493507447E-15
q -5.634467367917295E-15 1.749534828968753E-14 1.429865791396413E-12 3.414554909358013E-16 3.0186088978896E-13 -7.702527959972936E-15
tp 4.502442919461052E-13 1.429865791396413E-12 6.922969786617039E-8 -3.177509949805641E-11 1.263211092603642E-8 -1.903657278845705E-12
node -9.378699507176063E-16 3.414554909358013E-16 -3.177509949805641E-11 5.830711192726016E-10 -5.794718112206279E-10 -1.714398203502111E-11
peri 6.248877926918942E-14 3.0186088978896E-13 1.263211092603642E-8 -5.794718112206279E-10 2.880408359486756E-9 1.648388115352151E-11
i 2.802195493507447E-15 -7.702527959972936E-15 -1.903657278845705E-12 -1.714398203502111E-11 1.648388115352151E-11 2.393753572516701E-11

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 15.38   n/a MPCxxxxx  

266889 (2009 WW46)          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 WW46 = 2006 DJ64 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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