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JPL Small-Body Database Browser
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39456 (4120 T-3)
Classification: Main-belt Asteroid          SPK-ID: 2039456
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05646720833258432 4.3376e-08  
a 2.717284309580168 1.8243e-08 au
q 2.563846850372242 1.2368e-07 au
i 4.118301586678747 5.314e-06 deg
node 125.771845014494 6.7275e-05 deg
peri 341.8182716066668 8.4116e-05 deg
M 15.71469225491174 5.0803e-05 deg
tp 2458529.082535397918
(2019-Feb-14.58253540)
0.00023073 TDB
period 1636.066862761093
4.48
1.6476e-05
4.511e-08
d
yr
n .2200399067996827 2.2159e-09 deg/d
Q 2.870721768788095 1.9273e-08 au
  Orbit Determination Parameters
   # obs. used (total)      819  
   data-arc span      15126 days (41.41 yr)  
   first obs. used      1977-10-07  
   last obs. used      2019-03-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58222  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 02:06:48  

Additional Information
 Earth MOID = 1.58119 au 
 Jupiter MOID = 2.18802 au 
 T_jup = 3.354 
[ 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 15.0   n/a MPO431945  

39456 (4120 T-3)          Discovered 1977-Oct-16 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar
Reference: 20020328/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 4120 T-3 = 2000 WL59 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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