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118121 (3211 T-3)
Classification: Main-belt Asteroid          SPK-ID: 2118121
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1200686757691545 4.5705e-08  
a 2.659741671128476 1.4935e-08 au
q 2.340390010788042 1.2872e-07 au
i 3.697378828336526 4.084e-06 deg
node 199.9265485861449 5.1234e-05 deg
peri 151.4294474708589 5.3706e-05 deg
M 5.334983173023827 1.3959e-05 deg
tp 2459177.020536646935
(2020-Nov-23.52053665)		 6.1468e-05 TDB
period 1584.373658354521
4.34		 1.3345e-05
3.654e-08		 d
yr
n .2272191273199305 1.9138e-09 deg/d
Q 2.97909333146891 1.6728e-08 au
   Orbit Determination Parameters
   # obs. used (total)      515  
   data-arc span      15769 days (43.17 yr)  
   first obs. used      1977-10-07  
   last obs. used      2020-12-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47781  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 09:18:53  

Additional Information
 Earth MOID = 1.33385 au 
 Jupiter MOID = 2.44525 au 
 T_jup = 3.373 
[ 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 16.24   n/a E2021B55  

118121 (3211 T-3)          Discovered 1977-Oct-16 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 3211 T-3 = 2003 ST129 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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