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233926 (2009 UN4)
Classification: Main-belt Asteroid          SPK-ID: 2233926
[ 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 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1603224845742615 7.0871e-08  
a 2.365715458645771 2.5724e-08 au
q 1.986438078519942 1.5943e-07 au
i .7558193111888234 7.6608e-06 deg
node 287.2197919842306 0.00056301 deg
peri 151.2242729520066 0.00056377 deg
M 295.8620083641573 3.1567e-05 deg
tp 2459237.285467490031
(2021-Jan-22.78546749)		 0.00011879 TDB
period 1329.052658530307
3.64		 2.1677e-05
5.935e-08		 d
yr
n .2708696285955254 4.418e-09 deg/d
Q 2.7449928387716 2.9848e-08 au
   Orbit Determination Parameters
   # obs. used (total)      178  
   data-arc span      5582 days (15.28 yr)  
   first obs. used      2002-12-06  
   last obs. used      2018-03-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59146  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Apr-05 16:08:13  

Additional Information
 Earth MOID = 1.002 au 
 Jupiter MOID = 2.4896 au 
 T_jup = 3.530 
[ 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 17.5   n/a MPO437099  

233926 (2009 UN4)          Discovered 2009-Oct-18 by BATTeRS at Bisei SG Center
Reference: 20100228/Numbers.arcLast Updated: 2010-03-03

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Alternate Designations
 2009 UN4 = 2005 SH52 = 2009 UQ139 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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