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233754 (2008 TH18)
Classification: Main-belt Asteroid          SPK-ID: 2233754
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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1945948066310267 5.6215e-08  
a 2.98817722436267 2.2983e-08 au
q 2.406693455208578 1.7498e-07 au
i 1.266672964228587 5.8457e-06 deg
node 352.6451852088408 0.00019506 deg
peri 22.35779994341993 0.00019546 deg
M 104.614247120946 1.1875e-05 deg
tp 2458452.227722661745
(2018-Nov-29.72772266)
6.0051e-05 TDB
period 1886.722174787344
5.17
2.1768e-05
5.96e-08
d
yr
n .1908071070615239 2.2014e-09 deg/d
Q 3.569660993516762 2.7456e-08 au
  Orbit Determination Parameters
   # obs. used (total)      458  
   data-arc span      8155 days (22.33 yr)  
   first obs. used      1997-10-05  
   last obs. used      2020-02-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55097  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 07:23:37  

Additional Information
 Earth MOID = 1.40783 au 
 Jupiter MOID = 1.89812 au 
 T_jup = 3.228 
[ 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 15.8   n/a MPO494290  

233754 (2008 TH18)          Discovered 2008-Oct-01 by Mt. Lemmon Survey at Mount Lemmon
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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