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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2155998995323564 4.2511e-08  
a 2.480549525668046 1.1557e-08 au
q 1.945743297148981 1.084e-07 au
i 3.321302469751915 6.6823e-06 deg
node 316.0755158289187 0.00011388 deg
peri 117.0348675365957 0.00011782 deg
M 339.2983972952504 2.5625e-05 deg
tp 2459282.558155233430
(2021-Mar-09.05815523)
0.00010133 TDB
period 1426.987866850393
3.91
9.9726e-06
2.73e-08
d
yr
n .2522796502780235 1.7631e-09 deg/d
Q 3.015355754187111 1.4049e-08 au
  Orbit Determination Parameters
   # obs. used (total)      466  
   data-arc span      17270 days (47.28 yr)  
   first obs. used      1973-09-29  
   last obs. used      2021-01-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56435  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 09:25:01  

Additional Information
 Earth MOID = .962825 au 
 Jupiter MOID = 2.27468 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 16.84   n/a E2021B55  

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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