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JPL Small-Body Database Browser
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46490 (4164 T-2)
Classification: Main-belt Asteroid          SPK-ID: 2046490
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1491854023995985 3.4924e-08  
a 2.389808387674155 1.0253e-08 au
q 2.03328386170105 8.2068e-08 au
i 3.168130848602208 4.0709e-06 deg
node 56.31240725289833 6.6485e-05 deg
peri 44.2332277123641 6.833e-05 deg
M 43.96009798247926 1.3418e-05 deg
tp 2458435.722010559308
(2018-Nov-13.22201056)
5.0399e-05 TDB
period 1349.407278898511
3.69
8.6838e-06
2.377e-08
d
yr
n .2667837988052498 1.7168e-09 deg/d
Q 2.746332913647259 1.1782e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1134  
   data-arc span      16658 days (45.61 yr)  
   first obs. used      1973-09-19  
   last obs. used      2019-04-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50213  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 02:37:53  

Additional Information
 Earth MOID = 1.0517 au 
 Jupiter MOID = 2.39958 au 
 T_jup = 3.516 
[ 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 15.5   n/a MPO333223  

46490 (4164 T-2)          Discovered 1973-Sep-29 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar
Reference: 20020822/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 4164 T-2 = 1999 TJ215 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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