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154945 (2004 TM64)
Classification: Main-belt Asteroid          SPK-ID: 2154945
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 .007139045565366593 4.2938e-08  
a 2.918863311315944 2.5568e-08 au
q 2.898025413137382 1.3399e-07 au
i 2.369778460684064 4.9485e-06 deg
node 168.2257159321782 0.00011917 deg
peri 278.9638979961384 0.00038583 deg
M 345.6007134236517 0.00036661 deg
tp 2459073.354693899533
(2020-Aug-11.85469390)
0.001855 TDB
period 1821.45758852472
4.99
2.3933e-05
6.552e-08
d
yr
n .1976439101673402 2.5969e-09 deg/d
Q 2.939701209494505 2.575e-08 au
  Orbit Determination Parameters
   # obs. used (total)      389  
   data-arc span      6907 days (18.91 yr)  
   first obs. used      2000-12-26  
   last obs. used      2019-11-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .528  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 13:30:57  

Additional Information
 Earth MOID = 1.9137 au 
 Jupiter MOID = 2.04096 au 
 T_jup = 3.279 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457129.5 (2015-Apr-17.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .004233072958932258 4.326e-08  
q 2.905239812087725 1.3441e-07 au
tp 2457228.022958354461
(2015-Jul-24.52295835)
0.003104 TDB
node 168.2537585940068 0.00011913 deg
peri 274.2896488661404 0.00062583 deg
i 2.368739185085424 4.9522e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      389  
   data-arc span      6907 days (18.91 yr)  
   first obs. used      2000-12-26  
   last obs. used      2019-11-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .528  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 13:30:57  

Additional Information
 Jupiter MOID = 2.04096 au 
 T_jup = 3.279 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.871442043038506E-15 -5.715542184493565E-15 -2.201832442014648E-11 2.764507688296031E-15 -4.355369762999049E-12 -1.974335883677208E-16
q -5.715542184493565E-15 1.806484989581758E-14 6.563607441743852E-11 -5.181295200047023E-15 1.297406584599091E-11 9.959029294053515E-16
tp -2.201832442014648E-11 6.563607441743852E-11 9.63465835063847E-6 -2.172726224036853E-10 1.907058323531922E-6 1.595588800691634E-11
node 2.764507688296031E-15 -5.181295200047023E-15 -2.172726224036853E-10 1.419213209312248E-8 -1.422251794808751E-8 1.089294909077115E-10
peri -4.355369762999049E-12 1.297406584599091E-11 1.907058323531922E-6 -1.422251794808751E-8 3.916570938337324E-7 -1.056763469102595E-10
i -1.974335883677208E-16 9.959029294053515E-16 1.595588800691634E-11 1.089294909077115E-10 -1.056763469102595E-10 2.452419698830273E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.8   n/a MPO417827  

154945 (2004 TM64)          Discovered 2004-Oct-05 by Spacewatch at Kitt Peak
Reference: 20070402/Numbers.arcLast Updated: 2007-04-04
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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