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JPL Small-Body Database Browser
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74908 (1999 TE138)
Classification: Main-belt Asteroid          SPK-ID: 2074908
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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1010802326994782 3.3051e-08  
a 2.35357120271417 1.2742e-08 au
q 2.115671677869031 7.8981e-08 au
i 7.06777728820494 5.827e-06 deg
node 10.00795885412505 3.0439e-05 deg
peri 265.926212622333 4.1807e-05 deg
M 243.5269218431385 2.9372e-05 deg
tp 2459027.190026417651
(2020-Jun-26.69002642)
0.00010842 TDB
period 1318.831887515504
3.61
1.071e-05
2.932e-08
d
yr
n .2729688320459024 2.2167e-09 deg/d
Q 2.591470727559309 1.403e-08 au
  Orbit Determination Parameters
   # obs. used (total)      512  
   data-arc span      7676 days (21.02 yr)  
   first obs. used      1998-04-21  
   last obs. used      2019-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62922  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 07:16:47  

Additional Information
 Earth MOID = 1.11349 au 
 Jupiter MOID = 2.51712 au 
 T_jup = 3.539 
[ 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 16.2   n/a MPO436307  

74908 (1999 TE138)          Discovered 1999-Oct-06 by LINEAR at Socorro
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 TE138 = 1998 HT87 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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