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120429 (2225 T-3)
Classification: Main-belt Asteroid          SPK-ID: 2120429
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 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2155274401312295 4.4149e-08  
a 2.480701308526101 1.5534e-08 au
q 1.946042105769279 1.1462e-07 au
i 3.321226175010834 1.2754e-05 deg
node 316.0749492747032 0.00014101 deg
peri 116.9998403178773 0.00014825 deg
M 288.8665459582052 4.5243e-05 deg
tp 2459282.488590687834
(2021-Mar-08.98859069)
0.00018028 TDB
period 1427.118843237586
3.91
1.3405e-05
3.67e-08
d
yr
n .2522564968613951 2.3694e-09 deg/d
Q 3.015360511282923 1.8882e-08 au
  Orbit Determination Parameters
   # obs. used (total)      292  
   data-arc span      16269 days (44.54 yr)  
   first obs. used      1973-09-29  
   last obs. used      2018-04-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62226  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 10:46:05  

Additional Information
 Earth MOID = .9636 au 
 Jupiter MOID = 2.27442 au 
 T_jup = 3.444 
[ 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 16.8   n/a MPO396031  

120429 (2225 T-3)          Discovered 1977-Oct-16 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar
Reference: 20051116/Numbers.arcLast Updated: 2005-11-21

[ show close-approach data ]
Alternate Designations
 2225 T-3 = 2002 AL177 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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