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226874 (2004 TP81)
Classification: Main-belt Asteroid          SPK-ID: 2226874
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02850845666477723 5.0925e-08  
a 2.684425543885442 2.1301e-08 au
q 2.607896714597763 1.369e-07 au
i 6.131978429223524 6.3217e-06 deg
node 215.093791079893 4.3571e-05 deg
peri 18.55059732088569 0.00011421 deg
M 339.1574987043998 0.00010299 deg
tp 2459093.508535773871
(2020-Sep-01.00853577)
0.00045922 TDB
period 1606.480546826781
4.40
1.9121e-05
5.235e-08
d
yr
n .2240923493976283 2.6673e-09 deg/d
Q 2.760954373173122 2.1908e-08 au
  Orbit Determination Parameters
   # obs. used (total)      276  
   data-arc span      21765 days (59.59 yr)  
   first obs. used      1960-09-24  
   last obs. used      2020-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56472  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 10:30:58  

Additional Information
 Earth MOID = 1.59774 au 
 Jupiter MOID = 2.21332 au 
 T_jup = 3.366 
[ show covariance matrix ]

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 16.2   n/a MPO422879  

226874 (2004 TP81)          Discovered 2004-Oct-05 by Spacewatch at Kitt Peak
Reference: 20091202/Numbers.arcLast Updated: 2009-12-04

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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