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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 ]

[ hide orbit diagram ]

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.


Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .007139097374024289 4.2192e-08  
a 2.918863311753241 2.4643e-08 au
q 2.898025262349167 1.3059e-07 au
i 2.369776088490011 4.8112e-06 deg
node 168.2256519443913 0.00011806 deg
peri 278.9641592915355 0.00037768 deg
M 345.6005222814534 0.00035802 deg
tp 2459073.355661019815
(2020-Aug-11.85566102)
0.0018114 TDB
period 1821.45758893405
4.99
2.3067e-05
6.315e-08
d
yr
n .1976439101229244 2.503e-09 deg/d
Q 2.939701361157314 2.4819e-08 au
  Orbit Determination Parameters
   # obs. used (total)      399  
   data-arc span      7263 days (19.89 yr)  
   first obs. used      2000-12-26  
   last obs. used      2020-11-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52529  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-17 23:13:07  

Additional Information
 Earth MOID = 1.9137 au 
 Jupiter MOID = 2.04096 au 
 T_jup = 3.279 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457228.5 (2015-Jul-25.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .004226629088795462 4.2342e-08  
q 2.905218212012093 1.3043e-07 au
tp 2457230.816632897963
(2015-Jul-27.31663290)
0.0030511 TDB
node 168.253479932522 0.00011802 deg
peri 274.8470716686985 0.00061549 deg
i 2.368741965382437 4.815e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      399  
   data-arc span      7263 days (19.89 yr)  
   first obs. used      2000-12-26  
   last obs. used      2020-11-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52529  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-17 23:13:07  

Additional Information
 Jupiter MOID = 2.04096 au 
 T_jup = 3.279 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.792853962006838E-15 -5.428375323969615E-15 -1.671000444284494E-11 2.057225188934516E-15 -3.308966565304431E-12 -1.779467482952264E-16
q -5.428375323969615E-15 1.701279634933784E-14 4.59997619623677E-11 -3.341697676135594E-15 9.104181992168572E-12 8.590867174440151E-16
tp -1.671000444284494E-11 4.59997619623677E-11 9.309444749239795E-6 -2.470080872195216E-10 1.843126065799004E-6 9.089157126413076E-12
node 2.057225188934516E-15 -3.341697676135594E-15 -2.470080872195216E-10 1.392869355901765E-8 -1.396519567896697E-8 9.015064746389687E-11
peri -3.308966565304431E-12 9.104181992168572E-12 1.843126065799004E-6 -1.396519567896697E-8 3.788261884181208E-7 -8.826809220395695E-11
i -1.779467482952264E-16 8.590867174440151E-16 9.089157126413076E-12 9.015064746389687E-11 -8.826809220395695E-11 2.318408432707814E-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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