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226900 (2004 TO156)
Classification: Main-belt Asteroid          SPK-ID: 2226900
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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03866227766577885 5.27e-08  
a 2.775219865088643 2.365e-08 au
q 2.667923544081 1.4374e-07 au
i 1.830886183209311 5.9384e-06 deg
node 138.2544016554654 0.00018964 deg
peri 281.9083352412736 0.00020817 deg
M 99.41001120672713 8.4685e-05 deg
tp 2458534.192777509063
(2019-Feb-19.69277751)
0.00039756 TDB
period 1688.668958578462
4.62
2.1586e-05
5.91e-08
d
yr
n .2131856561768338 2.7251e-09 deg/d
Q 2.882516186096285 2.4565e-08 au
  Orbit Determination Parameters
   # obs. used (total)      209  
   data-arc span      8922 days (24.43 yr)  
   first obs. used      1995-10-19  
   last obs. used      2020-03-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54421  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 02:30:18  

Additional Information
 Earth MOID = 1.68087 au 
 Jupiter MOID = 2.23671 au 
 T_jup = 3.334 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457627.5 (2016-Aug-27.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03825312090128497 5.211e-08  
q 2.669008926578192 1.4191e-07 au
tp 2456851.684354882741
(2014-Jul-13.18435488)
0.00040744 TDB
node 138.2641352811708 0.00018967 deg
peri 283.2332215014005 0.0002089 deg
i 1.830733427024981 5.9381e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      209  
   data-arc span      8922 days (24.43 yr)  
   first obs. used      1995-10-19  
   last obs. used      2020-03-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54421  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 02:30:18  

Additional Information
 Jupiter MOID = 2.23671 au 
 T_jup = 3.334 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.715407802919269E-15 -7.30335653960857E-15 -7.994943905568574E-12 -2.131671740376258E-15 -1.744259608395445E-12 -5.481435517052137E-16
q -7.30335653960857E-15 2.013961114618978E-14 2.093015961664669E-11 5.686784355558254E-15 4.61198987137381E-12 1.645553784801589E-15
tp -7.994943905568574E-12 2.093015961664669E-11 1.66007205882252E-7 1.276910983173296E-11 3.570534475733364E-8 3.683393239381059E-12
node -2.131671740376258E-15 5.686784355558254E-15 1.276910983173296E-11 3.597628501371859E-8 -3.59546130324562E-8 3.781528878266136E-10
peri -1.744259608395445E-12 4.61198987137381E-12 3.570534475733364E-8 -3.59546130324562E-8 4.363866281836536E-8 -3.771425229760108E-10
i -5.481435517052137E-16 1.645553784801589E-15 3.683393239381059E-12 3.781528878266136E-10 -3.771425229760108E-10 3.52612185591273E-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 16.5   n/a MPO418210  

226900 (2004 TO156)          Discovered 2004-Oct-06 by Spacewatch at Kitt Peak
Reference: 20091202/Numbers.arcLast Updated: 2009-12-04
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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