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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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1957320007164894 7.3679e-08  
a 2.858541909650827 3.4495e-08 au
q 2.299033782542936 2.1839e-07 au
i 3.324644700986137 7.4128e-06 deg
node 107.3318742994955 0.00015017 deg
peri 265.7172799287629 0.0001524 deg
M 234.4988497209548 3.0448e-05 deg
tp 2459615.904231716949
(2022-Feb-05.40423172)
0.00015821 TDB
period 1765.286795583201
4.83
3.1954e-05
8.749e-08
d
yr
n .203932868529199 3.6914e-09 deg/d
Q 3.418050036758717 4.1247e-08 au
  Orbit Determination Parameters
   # obs. used (total)      154  
   data-arc span      6476 days (17.73 yr)  
   first obs. used      2002-10-01  
   last obs. used      2020-06-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57608  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 10:13:23  

Additional Information
 Earth MOID = 1.30247 au 
 Jupiter MOID = 2.05062 au 
 T_jup = 3.272 
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Orbital Elements at Epoch 2457409.5 (2016-Jan-22.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1955703384652961 7.3854e-08  
q 2.299728293777588 2.1883e-07 au
tp 2457852.250985768335
(2017-Apr-08.75098577)
0.00013375 TDB
node 107.3359040105567 0.00015018 deg
peri 266.0695431403301 0.0001524 deg
i 3.32448677742913 7.4129e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      154  
   data-arc span      6476 days (17.73 yr)  
   first obs. used      2002-10-01  
   last obs. used      2020-06-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57608  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 10:13:23  

Additional Information
 Jupiter MOID = 2.05062 au 
 T_jup = 3.272 
Orbit Covariance (6×6)
  e q tp node peri i
e 5.454451072769998E-15 -1.603751838609853E-14 1.61483167428772E-12 -2.513480270058962E-14 4.816704193338781E-13 -2.040418468937282E-15
q -1.603751838609853E-14 4.788441108411847E-14 -1.969495399753135E-12 5.928255974092426E-14 -9.104978432386531E-13 7.04184578411384E-15
tp 1.61483167428772E-12 -1.969495399753135E-12 1.788952033303861E-8 -9.40090777642175E-11 3.571147947038773E-9 2.394655977037396E-12
node -2.513480270058962E-14 5.928255974092426E-14 -9.40090777642175E-11 2.25525937875539E-8 -2.253312811496583E-8 -4.756056207391509E-10
peri 4.816704193338781E-13 -9.104978432386531E-13 3.571147947038773E-9 -2.253312811496583E-8 2.322669817822691E-8 4.751809170109838E-10
i -2.040418468937282E-15 7.04184578411384E-15 2.394655977037396E-12 -4.756056207391509E-10 4.751809170109838E-10 5.495042213569827E-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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