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233728 (2008 SQ189)
Classification: Main-belt Asteroid          SPK-ID: 2233728
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 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1466517869932973 8.617e-08  
a 2.617157454249009 3.0335e-08 au
q 2.233346636740563 2.1282e-07 au
i 2.125472225185173 9.1088e-06 deg
node 329.0785912420035 0.0001694 deg
peri 149.8582365005172 0.00017223 deg
M 189.96002438741 3.235e-05 deg
tp 2459730.952092441984
(2022-May-31.45209244)
0.00014662 TDB
period 1546.476070299107
4.23
2.6887e-05
7.361e-08
d
yr
n .2327873071649739 4.0473e-09 deg/d
Q 3.000968271757455 3.4784e-08 au
  Orbit Determination Parameters
   # obs. used (total)      151  
   data-arc span      8628 days (23.62 yr)  
   first obs. used      1995-09-24  
   last obs. used      2019-05-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .68713  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 08:32:15  

Additional Information
 Earth MOID = 1.24972 au 
 Jupiter MOID = 2.07845 au 
 T_jup = 3.390 
[ 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 17.0   n/a MPO433527  

233728 (2008 SQ189)          Discovered 2008-Sep-25 by Spacewatch at Kitt Peak
Reference: 20100228/Numbers.arcLast Updated: 2010-03-03

[ show close-approach data ]
Alternate Designations
 2008 SQ189 = 1995 SN38 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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