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434161 (2002 TU9)
Classification: Main-belt Asteroid          SPK-ID: 2434161
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1957320028512455 7.3914e-08  
a 2.858541909643666 3.4496e-08 au
q 2.299033776434887 2.1903e-07 au
i 3.32464544485955 7.6467e-06 deg
node 107.3318918507242 0.00015207 deg
peri 265.7172600698981 0.00015444 deg
M 234.4988513640308 3.0824e-05 deg
tp 2459615.904223657690
(2022-Feb-05.40422366)
0.00015994 TDB
period 1765.286795576567
4.83
3.1955e-05
8.749e-08
d
yr
n .2039328685299654 3.6915e-09 deg/d
Q 3.418050042852444 4.1248e-08 au
  Orbit Determination Parameters
   # obs. used (total)      148  
   data-arc span      6418 days (17.57 yr)  
   first obs. used      2002-10-01  
   last obs. used      2020-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55673  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-22 03:24:29  

Additional Information
 Earth MOID = 1.30247 au 
 Jupiter MOID = 2.05062 au 
 T_jup = 3.272 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457217.5 (2015-Jul-14.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1955846218992479 7.4076e-08  
q 2.299448041162913 2.1935e-07 au
tp 2457852.362017855897
(2017-Apr-08.86201786)
0.00013585 TDB
node 107.3356236426252 0.00015208 deg
peri 266.1037586821785 0.00015445 deg
i 3.324510216315062 7.647e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      148  
   data-arc span      6418 days (17.57 yr)  
   first obs. used      2002-10-01  
   last obs. used      2020-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55673  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-22 03:24:29  

Additional Information
 Jupiter MOID = 2.05062 au 
 T_jup = 3.272 
Orbit Covariance (6×6)
  e q tp node peri i
e 5.487198523954487E-15 -1.61248212872128E-14 1.486156856068414E-12 -3.306489267281906E-14 4.515535346877077E-13 -2.747156400563562E-15
q -1.61248212872128E-14 4.811403701628663E-14 -1.615694263343682E-12 8.122404499930567E-14 -8.272824302138521E-13 9.003486692047215E-15
tp 1.486156856068414E-12 -1.615694263343682E-12 1.845403836658779E-8 -1.077655715390663E-10 3.750851611417908E-9 1.37698119801563E-12
node -3.306489267281906E-14 8.122404499930567E-14 -1.077655715390663E-10 2.312806314712854E-8 -2.311057703073392E-8 -4.320724204094914E-10
peri 4.515535346877077E-13 -8.272824302138521E-13 3.750851611417908E-9 -2.311057703073392E-8 2.385472327360933E-8 4.315153317979299E-10
i -2.747156400563562E-15 9.003486692047215E-15 1.37698119801563E-12 -4.320724204094914E-10 4.315153317979299E-10 5.847623533820099E-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 MPO386652  

434161 (2002 TU9)          Discovered 2002-Oct-01 by LONEOS at Anderson Mesa
Reference: Last Updated: 2015-06-04

Alternate Designations
 2002 TU9 = 2007 TR254 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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