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134221 (2005 WB147)
Classification: Main-belt Asteroid          SPK-ID: 2134221
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1000228659352964 5.0744e-08  
a 2.408357122218321 1.2099e-08 au
q 2.167466340658362 1.2204e-07 au
i 8.471237869411556 5.2145e-06 deg
node 141.1678520349612 3.8881e-05 deg
peri 289.5161685001446 4.9407e-05 deg
M 9.945455701371799 2.8635e-05 deg
tp 2459162.786056750857
(2020-Nov-09.28605675)
0.00010859 TDB
period 1365.148061321994
3.74
1.0287e-05
2.816e-08
d
yr
n .2637076594104965 1.9872e-09 deg/d
Q 2.64924790377828 1.3309e-08 au
  Orbit Determination Parameters
   # obs. used (total)      569  
   data-arc span      8066 days (22.08 yr)  
   first obs. used      1999-01-20  
   last obs. used      2021-02-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .56451  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 18:07:26  

Additional Information
 Earth MOID = 1.19893 au 
 Jupiter MOID = 2.56926 au 
 T_jup = 3.500 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457237.5 (2015-Aug-03.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1000054536229267 5.0996e-08  
q 2.167526918137827 1.2266e-07 au
tp 2457793.805635018890
(2017-Feb-09.30563502)
0.00010909 TDB
node 141.2764535751473 3.8913e-05 deg
peri 288.530277861984 4.9401e-05 deg
i 8.467557120181716 5.213e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      569  
   data-arc span      8066 days (22.08 yr)  
   first obs. used      1999-01-20  
   last obs. used      2021-02-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .56451  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 18:07:26  

Additional Information
 Jupiter MOID = 2.56926 au 
 T_jup = 3.500 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.600605442650257E-15 -6.230336632977001E-15 -1.39569951141228E-12 -2.013383530994117E-14 -4.115573321755812E-13 -7.174939654515353E-15
q -6.230336632977001E-15 1.504437467207209E-14 3.260946565808723E-12 4.94466264840189E-14 9.490258014041359E-13 1.74338650411089E-14
tp -1.39569951141228E-12 3.260946565808723E-12 1.190060113668316E-8 2.160136703587093E-11 3.350554636876536E-9 6.606490336938391E-12
node -2.013383530994117E-14 4.94466264840189E-14 2.160136703587093E-11 1.514214290375411E-9 -1.490813467299277E-9 1.433598478503772E-11
peri -4.115573321755812E-13 9.490258014041359E-13 3.350554636876536E-9 -1.490813467299277E-9 2.440456128998921E-9 -1.228135308075613E-11
i -7.174939654515353E-15 1.74338650411089E-14 6.606490336938391E-12 1.433598478503772E-11 -1.228135308075613E-11 2.71752566459971E-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 16.20   n/a MPCxxxxx  

134221 (2005 WB147)          Discovered 2005-Nov-25 by CSS at Catalina
Reference: 20060711/Numbers.arcLast Updated: 2006-07-17

[ show close-approach data ]
Alternate Designations
 2005 WB147 = 2002 AL18 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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