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266840 (2009 UN24)
Classification: Main-belt Asteroid          SPK-ID: 2266840
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02949030056960247 4.7744e-08  
a 2.637804315727552 2.6038e-08 au
q 2.560014673612952 1.4136e-07 au
i 2.795579794395818 7.3142e-06 deg
node 65.29029494940727 0.00015237 deg
peri 227.0941768383751 0.00022954 deg
M 277.593624559037 0.00017022 deg
tp 2459358.695891655148
(2021-May-24.19589166)
0.00073815 TDB
period 1564.812434788315
4.28
2.317e-05
6.344e-08
d
yr
n .2300595215098097 3.4064e-09 deg/d
Q 2.715593957842152 2.6806e-08 au
  Orbit Determination Parameters
   # obs. used (total)      243  
   data-arc span      7142 days (19.55 yr)  
   first obs. used      2000-10-06  
   last obs. used      2020-04-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58332  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 15:25:53  

Additional Information
 Earth MOID = 1.54478 au 
 Jupiter MOID = 2.31859 au 
 T_jup = 3.394 
[ 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 16.5   n/a MPO433732  

266840 (2009 UN24)          Discovered 2009-Oct-18 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20110218/Numbers.arcLast Updated: 2011-02-22

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Alternate Designations
 2009 UN24 = 2005 WG147 = 2005 WQ133 = 2005 XC118 = 2005 XT112 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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