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JPL Small-Body Database Browser
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74932 (1999 TC161)
Classification: Main-belt Asteroid          SPK-ID: 2074932
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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03754133856291302 4.4936e-08  
a 2.251196267433684 1.0798e-08 au
q 2.16668334618639 9.8575e-08 au
i 2.525933081861472 4.5223e-06 deg
node 322.1451086073407 8.9396e-05 deg
peri 201.8934450923289 0.00010454 deg
M 134.6858714588311 5.6037e-05 deg
tp 2458138.929539895288
(2018-Jan-20.42953990)
0.00019073 TDB
period 1233.72528861342
3.38
8.8768e-06
2.43e-08
d
yr
n .2917991576589979 2.0995e-09 deg/d
Q 2.335709188680978 1.1204e-08 au
  Orbit Determination Parameters
   # obs. used (total)      564  
   data-arc span      7853 days (21.50 yr)  
   first obs. used      1998-05-01  
   last obs. used      2019-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54368  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 08:56:42  

Additional Information
 Earth MOID = 1.17423 au 
 Jupiter MOID = 2.63434 au 
 T_jup = 3.625 
[ 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 16.1   n/a MPO436307  

74932 (1999 TC161)          Discovered 1999-Oct-09 by LINEAR at Socorro
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 TC161 = 2001 DX70 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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