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154954 (2004 TN118)
Classification: Main-belt Asteroid          SPK-ID: 2154954
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03643038861932211 6.8032e-08  
a 3.099114314764668 3.8803e-08 au
q 2.986212375902087 2.1823e-07 au
i 16.36531848557399 7.5116e-06 deg
node 356.7568894589194 2.2331e-05 deg
peri 136.9771427934334 9.7556e-05 deg
M 196.0811249241491 9.2108e-05 deg
tp 2459907.863458158079
(2022-Nov-24.36345816)
0.00050864 TDB
period 1992.759191311896
5.46
3.7426e-05
1.025e-07
d
yr
n .1806540406736253 3.3928e-09 deg/d
Q 3.212016253627249 4.0216e-08 au
  Orbit Determination Parameters
   # obs. used (total)      409  
   data-arc span      8998 days (24.64 yr)  
   first obs. used      1993-09-18  
   last obs. used      2018-05-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61493  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 09:35:38  

Additional Information
 Earth MOID = 2.01086 au 
 Jupiter MOID = 1.783 au 
 T_jup = 3.159 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456852.5 (2014-Jul-14.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03385572571172478 6.6525e-08  
q 2.996027800258243 2.1198e-07 au
tp 2455899.562180510152
(2011-Dec-04.06218051)
0.00057338 TDB
node 356.9999024887549 2.2316e-05 deg
peri 133.1950637138821 0.00010764 deg
i 16.37485548147077 7.5099e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      409  
   data-arc span      8998 days (24.64 yr)  
   first obs. used      1993-09-18  
   last obs. used      2018-05-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61493  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 09:35:38  

Additional Information
 Jupiter MOID = 1.783 au 
 T_jup = 3.159 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.425541003383558E-15 -1.388896863799338E-14 1.010707407694468E-11 -1.624143508029187E-14 1.937799566186355E-12 -9.389453257285855E-15
q -1.388896863799338E-14 4.493445076440894E-14 -3.484979323665317E-11 5.626640330914231E-14 -6.550940512261343E-12 3.337610422138029E-14
tp 1.010707407694468E-11 -3.484979323665317E-11 3.287606739167982E-7 -1.855716665026525E-10 6.039890572505698E-8 3.295512885027036E-11
node -1.624143508029187E-14 5.626640330914231E-14 -1.855716665026525E-10 4.979967195628202E-10 -5.10926643736658E-10 -2.656170821956511E-11
peri 1.937799566186355E-12 -6.550940512261343E-12 6.039890572505698E-8 -5.10926643736658E-10 1.15860434946681E-8 3.179549261943049E-11
i -9.389453257285855E-15 3.337610422138029E-14 3.295512885027036E-11 -2.656170821956511E-11 3.179549261943049E-11 5.6398176276847E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.8   n/a MPO348351  

154954 (2004 TN118)          Discovered 2004-Oct-05 by NEAT at Palomar
Reference: 20070402/Numbers.arcLast Updated: 2007-04-04

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Alternate Designations
 2004 TN118 = 2001 DM50 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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