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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 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07985631225097158 4.9972e-08  
a 3.005707196421812 3.4585e-08 au
q 2.76568250400936 1.5033e-07 au
i 2.973890851963868 5.5011e-06 deg
node 201.20625371037 0.00010857 deg
peri 103.9608747923479 0.00011425 deg
M 131.5123049333646 3.621e-05 deg
tp 2458305.183841267541
(2018-Jul-05.68384127)
0.0001916 TDB
period 1903.349023275927
5.21
3.2851e-05
8.994e-08
d
yr
n .1891402972327116 3.2645e-09 deg/d
Q 3.245731888834265 3.7346e-08 au
  Orbit Determination Parameters
   # obs. used (total)      263  
   data-arc span      8088 days (22.14 yr)  
   first obs. used      1998-09-25  
   last obs. used      2020-11-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59777  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 00:04:44  

Additional Information
 Earth MOID = 1.75261 au 
 Jupiter MOID = 1.93374 au 
 T_jup = 3.244 
[ 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 15.7   n/a MPO454690  

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

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