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(2006 WE4)
Classification: Atira [NEO]          SPK-ID: 3360486
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .182917252642344 4.43e-07  
a .7847422704147398 9.0565e-09 au
q .6411993702781602 3.4706e-07 au
i 24.76725945239319 6.2273e-05 deg
node 311.0108706980545 7.3574e-05 deg
peri 318.61436597 0.0001703 deg
M .4527480659020048 0.0002867 deg
tp 2459000.180667515589
(2020-May-30.68066752)
0.00020221 TDB
period 253.9153737939887
0.70
4.3955e-06
1.203e-08
d
yr
n 1.417795207201916 2.4543e-08 deg/d
Q .9282851705513193 1.0713e-08 au
  Orbit Determination Parameters
   # obs. used (total)      55  
   # delay obs. used      1  
   # Doppler obs. used      0  
   data-arc span      4853 days (13.29 yr)  
   first obs. used      2006-11-21  
   last obs. used      2020-03-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      1  
   norm. resid. RMS      .34527  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Mar-18 06:16:24  

Additional Information
 Earth MOID = .101006 au 
 Jupiter MOID = 4.21531 au 
 T_jup = 7.324 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456311.5 (2013-Jan-19.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .18295786233404 4.4566e-07  
q .6411085511854262 3.4721e-07 au
tp 2456207.307503880205
(2012-Oct-06.80750388)
0.00018309 TDB
node 311.0405880631166 7.3607e-05 deg
peri 318.60301504607 0.00016921 deg
i 24.76700761731027 6.221e-05 deg
  Orbit Determination Parameters
   # obs. used (total)      55  
   # delay obs. used      1  
   # Doppler obs. used      0  
   data-arc span      4853 days (13.29 yr)  
   first obs. used      2006-11-21  
   last obs. used      2020-03-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      1  
   norm. resid. RMS      .34527  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Mar-18 06:16:24  

Additional Information
 Jupiter MOID = 4.21531 au 
 T_jup = 7.324 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.986165468363024E-13 -1.547232335272629E-13 -3.95102663824677E-11 -9.453424928232448E-12 -2.577266286160875E-11 1.743795996294023E-11
q -1.547232335272629E-13 1.205547743138885E-13 3.097773905237536E-11 7.238205376374483E-12 2.042485417562078E-11 -1.354418724863208E-11
tp -3.95102663824677E-11 3.097773905237536E-11 3.35216025086268E-8 2.054676126056797E-10 2.942322098089953E-8 -7.141366646071915E-9
node -9.453424928232448E-12 7.238205376374483E-12 2.054676126056797E-10 5.417933459199854E-9 -3.354620989845117E-9 -9.41591511704814E-10
peri -2.577266286160875E-11 2.042485417562078E-11 2.942322098089953E-8 -3.354620989845117E-9 2.863302499619128E-8 -4.987027000217045E-9
i 1.743795996294023E-11 -1.354418724863208E-11 -7.141366646071915E-9 -9.41591511704814E-10 -4.987027000217045E-9 3.870044203711966E-9

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 18.9   n/a MPO369051  

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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