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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 ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03754133850494815 4.4935e-08  
a 2.251196266462189 1.075e-08 au
q 2.166683345381856 9.8565e-08 au
i 2.525933192394927 4.4951e-06 deg
node 322.1451053278512 8.8424e-05 deg
peri 201.89345496527 0.00010347 deg
M 134.6858654931617 5.5672e-05 deg
tp 2458138.929560638508
(2018-Jan-20.42956064)
0.00018943 TDB
period 1233.725287814806
3.38
8.8371e-06
2.419e-08
d
yr
n .291799157847885 2.0902e-09 deg/d
Q 2.335709187542522 1.1154e-08 au
  Orbit Determination Parameters
   # obs. used (total)      572  
   data-arc span      7879 days (21.57 yr)  
   first obs. used      1998-05-01  
   last obs. used      2019-11-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54301  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 07:27:23  

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 16.2   n/a MPO493392  

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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