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129416 (2291 T-3)
Classification: Main-belt Asteroid          SPK-ID: 2129416
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .116122009517845 4.9614e-08  
a 2.266930582869404 1.049e-08 au
q 2.003690048149149 1.1033e-07 au
i 6.678612387106631 5.4773e-06 deg
node 352.3185582562197 3.3549e-05 deg
peri 38.93729563870674 3.9295e-05 deg
M 166.6760909913441 1.9115e-05 deg
tp 2458423.299677733769
(2018-Oct-31.79967773)
6.5916e-05 TDB
period 1246.682201268053
3.41
8.6535e-06
2.369e-08
d
yr
n .2887664551830683 2.0044e-09 deg/d
Q 2.530171117589659 1.1708e-08 au
  Orbit Determination Parameters
   # obs. used (total)      353  
   data-arc span      15539 days (42.54 yr)  
   first obs. used      1977-10-11  
   last obs. used      2020-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54851  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 21:43:55  

Additional Information
 Earth MOID = 1.01303 au 
 Jupiter MOID = 2.88665 au 
 T_jup = 3.598 
[ 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 16.9   n/a MPO459608  

129416 (2291 T-3)          Discovered 1977-Oct-16 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar
Reference: 20060314/Numbers.arcLast Updated: 2006-03-23
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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