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JPL Small-Body Database Browser
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266849 (2009 UH61)
Classification: Main-belt Asteroid          SPK-ID: 2266849
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1208772843516175 1.1455e-07  
a 2.721401511995756 2.6402e-08 au
q 2.392445887595323 3.1995e-07 au
i 6.122424490841391 1.0723e-05 deg
node 58.88201271048819 7.7864e-05 deg
peri 344.3511069370988 8.8856e-05 deg
M 24.77953423204421 3.8032e-05 deg
tp 2458487.630137071830
(2019-Jan-04.13013707)
0.00017309 TDB
period 1639.786699525432
4.49
2.3863e-05
6.533e-08
d
yr
n .219540748869464 3.1948e-09 deg/d
Q 3.050357136396189 2.9593e-08 au
  Orbit Determination Parameters
   # obs. used (total)      124  
   data-arc span      9494 days (25.99 yr)  
   first obs. used      1993-01-23  
   last obs. used      2019-01-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56237  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 13:12:20  

Additional Information
 Earth MOID = 1.40161 au 
 Jupiter MOID = 2.32943 au 
 T_jup = 3.340 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.7   n/a MPO460148  

266849 (2009 UH61)          Discovered 2009-Oct-17 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20110218/Numbers.arcLast Updated: 2011-02-22

Alternate Designations
 2009 UH61 = 2005 XA86 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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