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JPL Small-Body Database Browser
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172309 (2002 TU268)
Classification: Main-belt Asteroid          SPK-ID: 2172309
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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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 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2207250301202273 4.9743e-08  
a 2.770799174743784 2.4939e-08 au
q 2.159214443441361 1.3661e-07 au
i 8.193194318094612 7.5865e-06 deg
node 341.9532571224627 4.1228e-05 deg
peri 83.00257417961069 4.5414e-05 deg
M 264.1147890211253 1.7396e-05 deg
tp 2459449.199027961065
(2021-Aug-22.69902796)
8.3049e-05 TDB
period 1684.635705724961
4.61
2.2744e-05
6.227e-08
d
yr
n .2136960523729839 2.8851e-09 deg/d
Q 3.382383906046207 3.0444e-08 au
  Orbit Determination Parameters
   # obs. used (total)      367  
   data-arc span      7063 days (19.34 yr)  
   first obs. used      1998-12-21  
   last obs. used      2018-04-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61811  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-May-07 05:52:45  

Additional Information
 Earth MOID = 1.19073 au 
 Jupiter MOID = 2.03729 au 
 T_jup = 3.287 
[ 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 15.6   n/a MPO436857  

172309 (2002 TU268)          Discovered 2002-Oct-09 by LINEAR at Socorro
Reference: 20071224/Numbers.arcLast Updated: 2007-12-22

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