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266866 (2009 UX138)
Classification: Main-belt Asteroid          SPK-ID: 2266866
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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03694323510619812 5.754e-08  
a 3.046660951052421 3.9914e-08 au
q 2.934107439248818 1.9893e-07 au
i 3.816907729108983 4.8644e-06 deg
node 83.43451281512318 0.00013759 deg
peri 344.6117848210958 0.00018628 deg
M 330.4882644736664 0.00012607 deg
tp 2459159.730722519502
(2020-Nov-06.23072252)
0.00068106 TDB
period 1942.381872318929
5.32
3.8171e-05
1.045e-07
d
yr
n .1853394562266023 3.6422e-09 deg/d
Q 3.159214462856023 4.1389e-08 au
  Orbit Determination Parameters
   # obs. used (total)      232  
   data-arc span      6736 days (18.44 yr)  
   first obs. used      2001-04-16  
   last obs. used      2019-09-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5862  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 12:50:28  

Additional Information
 Earth MOID = 1.94826 au 
 Jupiter MOID = 1.95962 au 
 T_jup = 3.234 
[ 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 15.7   n/a MPO494442  

266866 (2009 UX138)          Discovered 2009-Oct-26 by Spacewatch at Kitt Peak
Reference: 20110218/Numbers.arcLast Updated: 2011-02-22

[ show close-approach data ]
Alternate Designations
 2009 UX138 = 2006 BB187 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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