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233691 (2008 SX9)
Classification: Main-belt Asteroid          SPK-ID: 2233691
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07985633297785842 5.003e-08  
a 3.005707191120837 3.5986e-08 au
q 2.765682436832748 1.5035e-07 au
i 2.973898196564541 5.649e-06 deg
node 201.2062195718701 0.00010859 deg
peri 103.9609000838313 0.00011462 deg
M 131.5123116037236 3.6849e-05 deg
tp 2458305.183807840242
(2018-Jul-05.68380784)
0.00019565 TDB
period 1903.349018240702
5.21
3.4182e-05
9.359e-08
d
yr
n .1891402977330737 3.3968e-09 deg/d
Q 3.245731945408926 3.886e-08 au
  Orbit Determination Parameters
   # obs. used (total)      259  
   data-arc span      7714 days (21.12 yr)  
   first obs. used      1998-09-25  
   last obs. used      2019-11-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60743  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 17:54:10  

Additional Information
 Earth MOID = 1.7526 au 
 Jupiter MOID = 1.93374 au 
 T_jup = 3.244 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456967.5 (2014-Nov-06.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08326970166927801 5.0527e-08  
q 2.752589507703041 1.5224e-07 au
tp 2456395.959894860462
(2013-Apr-13.45989486)
0.00019116 TDB
node 201.3288026332802 0.000109 deg
peri 102.5919237703594 0.0001144 deg
i 2.966514568558621 5.6449e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      259  
   data-arc span      7714 days (21.12 yr)  
   first obs. used      1998-09-25  
   last obs. used      2019-11-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60743  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 17:54:10  

Additional Information
 Jupiter MOID = 1.93374 au 
 T_jup = 3.244 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.553012985867485E-15 -7.513477473659279E-15 -3.016334607411858E-13 -1.330088393328989E-14 -8.064880428474811E-14 2.198692532152902E-16
q -7.513477473659279E-15 2.317583167610831E-14 -7.073363252453653E-13 4.486091343912569E-14 2.547394839930466E-15 2.059808459117872E-16
tp -3.016334607411858E-13 -7.073363252453653E-13 3.654318578684443E-8 4.497693447450248E-11 6.671685779184524E-9 -2.052859954401832E-12
node -1.330088393328989E-14 4.486091343912569E-14 4.497693447450248E-11 1.188088025345601E-8 -1.185609554694793E-8 4.644109925601395E-11
peri -8.064880428474811E-14 2.547394839930466E-15 6.671685779184524E-9 -1.185609554694793E-8 1.308681249691413E-8 -4.672928059009905E-11
i 2.198692532152902E-16 2.059808459117872E-16 -2.052859954401832E-12 4.644109925601395E-11 -4.672928059009905E-11 3.18649863825202E-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 15.7   n/a MPO454690  

233691 (2008 SX9)          Discovered 2008-Sep-22 by LINEAR at Socorro
Reference: 20100228/Numbers.arcLast Updated: 2010-03-03

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