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118145 (4142 T-3)
Classification: Main-belt Asteroid          SPK-ID: 2118145
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1201834454142006 4.881e-08  
a 2.462225809398714 1.2341e-08 au
q 2.166307028237408 1.1994e-07 au
i 7.261507706148962 5.8198e-06 deg
node 65.94379257599246 3.1862e-05 deg
peri 14.6194534493223 3.8302e-05 deg
M 10.77622784344985 2.0029e-05 deg
tp 2459158.257023630112
(2020-Nov-04.75702363)
7.8444e-05 TDB
period 1411.205452787764
3.86
1.061e-05
2.905e-08
d
yr
n .2551010551219445 1.9179e-09 deg/d
Q 2.75814459056002 1.3825e-08 au
  Orbit Determination Parameters
   # obs. used (total)      671  
   data-arc span      15804 days (43.27 yr)  
   first obs. used      1977-10-11  
   last obs. used      2021-01-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56804  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 09:18:57  

Additional Information
 Earth MOID = 1.18228 au 
 Jupiter MOID = 2.46767 au 
 T_jup = 3.468 
[ 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 15.87   n/a E2021B55  

118145 (4142 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

Alternate Designations
 4142 T-3 = 2004 UB2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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