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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1205925264378499 5.0138e-08  
a 2.66130466268186 1.7219e-08 au
q 2.340371209788225 1.3735e-07 au
i 3.696348082053635 6.128e-06 deg
node 199.9508611606599 5.6544e-05 deg
peri 151.3548609338535 5.9998e-05 deg
M 319.970830692703 2.0296e-05 deg
tp 2459176.825204430546
(2020-Nov-23.32520443)		 8.9815e-05 TDB
period 1585.770444240151
4.34		 1.539e-05
4.214e-08		 d
yr
n .2270189870845399 2.2032e-09 deg/d
Q 2.982238115575496 1.9295e-08 au
   Orbit Determination Parameters
   # obs. used (total)      376  
   data-arc span      15536 days (42.54 yr)  
   first obs. used      1977-10-07  
   last obs. used      2020-04-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51037  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 20:17:28  

Additional Information
 Earth MOID = 1.33556 au 
 Jupiter MOID = 2.44227 au 
 T_jup = 3.372 
[ 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 16.1   n/a MPO432684  

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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