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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1014402532769016 3.2854e-08  
a 2.354260750245787 1.2248e-08 au
q 2.115443943460986 7.8515e-08 au
i 7.067107628098905 5.6765e-06 deg
node 9.996548514197382 3.0235e-05 deg
peri 265.872791266246 4.098e-05 deg
M 352.7836515636227 2.8278e-05 deg
tp 2459026.948147852988
(2020-Jun-26.44814785)
0.00010368 TDB
period 1319.411515535884
3.61
1.0296e-05
2.819e-08
d
yr
n .2728489146570656 2.1292e-09 deg/d
Q 2.593077557030588 1.349e-08 au
  Orbit Determination Parameters
   # obs. used (total)      548  
   data-arc span      8087 days (22.14 yr)  
   first obs. used      1998-04-21  
   last obs. used      2020-06-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61105  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 23:51:27  

Additional Information
 Earth MOID = 1.11375 au 
 Jupiter MOID = 2.5156 au 
 T_jup = 3.538 
[ 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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