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233781 (2008 TO171)
Classification: Main-belt Asteroid          SPK-ID: 2233781
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05702751791696718 5.5427e-08  
a 2.987086336288094 3.1069e-08 au
q 2.816740216725897 1.6099e-07 au
i 1.083536457378047 6.4435e-06 deg
node 172.8378179407769 0.0003122 deg
peri 243.2137434101693 0.00032095 deg
M 95.92884030657787 7.0816e-05 deg
tp 2458498.022310653501
(2019-Jan-14.52231065)
0.00037039 TDB
period 1885.689096069848
5.16
2.942e-05
8.055e-08
d
yr
n .1909116411344329 2.9786e-09 deg/d
Q 3.157432455850291 3.2841e-08 au
  Orbit Determination Parameters
   # obs. used (total)      239  
   data-arc span      6378 days (17.46 yr)  
   first obs. used      2002-08-16  
   last obs. used      2020-02-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5267  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 07:23:52  

Additional Information
 Earth MOID = 1.82847 au 
 Jupiter MOID = 2.05126 au 
 T_jup = 3.255 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.2   n/a MPO418248  

233781 (2008 TO171)          Discovered 2008-Oct-03 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20100228/Numbers.arcLast Updated: 2010-03-03

Alternate Designations
 2008 TO171 = 2002 RQ209 = 2005 EA227 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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