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JPL Small-Body Database Browser
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(2009 UK20)
Classification: Apollo [NEO]          SPK-ID: 3472549
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | 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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2071717400989576 0.00019267  
a 1.053671062558616 5.319e-05 au
q .8353801950364298 0.00016084 au
i 2.844050825697392 0.0024299 deg
node 215.9765736913557 0.00022982 deg
peri 277.4459026834115 0.0063883 deg
M 203.8031809218364 0.23223 deg
tp 2458771.905870042484
(2019-Oct-15.40587004)
0.26782 TDB
period 395.0535841860868
1.08
0.029914
8.19e-05
d
yr
n .9112687858324174 6.9002e-05 deg/d
Q 1.271961930080802 6.4209e-05 au
  Orbit Determination Parameters
   # obs. used (total)      38  
   data-arc span      15 days  
   first obs. used      2009-10-25  
   last obs. used      2009-11-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      6  
   norm. resid. RMS      .69974  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-06 08:59:24  

Additional Information
 Earth MOID = .00620132 au 
 Jupiter MOID = 3.75346 au 
 T_jup = 5.818 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 26.3   n/a MPO166376  

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