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154957 (2004 TK125)
Classification: Main-belt Asteroid          SPK-ID: 2154957
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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1104332182907504 3.5012e-08  
a 2.925327647314085 2.1825e-08 au
q 2.602274300666282 1.0814e-07 au
i 2.816170370806579 5.2231e-06 deg
node 145.3726672424831 9.3549e-05 deg
peri 291.3737597076732 9.8387e-05 deg
M 349.0508526133819 2.7991e-05 deg
tp 2459056.082490381642
(2020-Jul-25.58249038)
0.00014216 TDB
period 1827.5118446069
5.00
2.0452e-05
5.599e-08
d
yr
n .1969891473274891 2.2046e-09 deg/d
Q 3.248380993961889 2.4236e-08 au
  Orbit Determination Parameters
   # obs. used (total)      462  
   data-arc span      9250 days (25.33 yr)  
   first obs. used      1994-09-29  
   last obs. used      2020-01-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59792  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 09:35:38  

Additional Information
 Earth MOID = 1.61926 au 
 Jupiter MOID = 1.97957 au 
 T_jup = 3.267 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457097.5 (2015-Mar-16.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1068977910836587 3.4764e-08  
q 2.613204242013913 1.0704e-07 au
tp 2457224.994531369616
(2015-Jul-21.49453137)
0.00014848 TDB
node 145.4595681366451 9.3422e-05 deg
peri 290.8573454139225 9.868e-05 deg
i 2.816901421920453 5.2292e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      462  
   data-arc span      9250 days (25.33 yr)  
   first obs. used      1994-09-29  
   last obs. used      2020-01-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59792  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 09:35:38  

Additional Information
 Jupiter MOID = 1.97957 au 
 T_jup = 3.267 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.208514484885945E-15 -3.660815234946516E-15 -5.79223942259505E-13 8.537137750830262E-16 -1.071383486018214E-13 -2.310150886804606E-17
q -3.660815234946516E-15 1.145825941911036E-14 1.574721028727726E-12 4.326186428899999E-16 2.760746766135745E-13 4.330969534872255E-16
tp -5.79223942259505E-13 1.574721028727726E-12 2.204513406764255E-8 -9.937655322922581E-11 4.745624539684543E-9 -6.484720223861303E-13
node 8.537137750830262E-16 4.326186428899999E-16 -9.937655322922581E-11 8.72763128172516E-9 -8.737555729221418E-9 1.805215111655445E-10
peri -1.071383486018214E-13 2.760746766135745E-13 4.745624539684543E-9 -8.737555729221418E-9 9.737674656591015E-9 -1.804475507233116E-10
i -2.310150886804606E-17 4.330969534872255E-16 -6.484720223861303E-13 1.805215111655445E-10 -1.804475507233116E-10 2.734415768821258E-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 15.7   n/a MPO417827  

154957 (2004 TK125)          Discovered 2004-Oct-07 by LINEAR at Socorro
Reference: 20070402/Numbers.arcLast Updated: 2007-04-04

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