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JPL Small-Body Database Browser
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357854 (2005 UK227)
Classification: Main-belt Asteroid          SPK-ID: 2357854
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09264199198365133 7.7926e-08  
a 3.08258160601523 4.1295e-08 au
q 2.797005105581816 2.3961e-07 au
i 6.474890616182636 1.004e-05 deg
node 57.96612634874808 4.4464e-05 deg
peri 144.2290270307341 6.3746e-05 deg
M 26.40446665185398 4.217e-05 deg
tp 2458455.507613041921
(2018-Dec-03.00761304)		 0.00023243 TDB
period 1976.83444975941
5.41		 3.9723e-05
1.088e-07		 d
yr
n .1821093314332991 3.6594e-09 deg/d
Q 3.368158106448644 4.5121e-08 au
   Orbit Determination Parameters
   # obs. used (total)      180  
   data-arc span      5025 days (13.76 yr)  
   first obs. used      2005-10-25  
   last obs. used      2019-07-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60076  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 06:43:11  

Additional Information
 Earth MOID = 1.79655 au 
 Jupiter MOID = 1.60067 au 
 T_jup = 3.211 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457725.5 (2016-Dec-03.0) TDB
Reference: JPL 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09166555086610816 7.7959e-08  
q 2.798781992659233 2.3892e-07 au
tp 2458454.159926771328
(2018-Dec-01.65992677)		 0.00023555 TDB
node 57.96145170085753 4.4466e-05 deg
peri 143.9076840891003 6.4171e-05 deg
i 6.475483563340907 1.004e-05 deg
   Orbit Determination Parameters
   # obs. used (total)      180  
   data-arc span      5025 days (13.76 yr)  
   first obs. used      2005-10-25  
   last obs. used      2019-07-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60076  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 06:43:11  

Additional Information
 Jupiter MOID = 1.60067 au 
 T_jup = 3.211 
Orbit Covariance (6×6)
  e q tp node peri i
e 6.077655293881453E-15 -1.83972885882449E-14 9.655653202923434E-12 2.632259318209395E-14 1.794536271625363E-12 -3.763383869145552E-15
q -1.83972885882449E-14 5.708468232908067E-14 -3.227365704443688E-11 -7.981913057473224E-14 -6.12089041556677E-12 1.484678024459464E-14
tp 9.655653202923434E-12 -3.227365704443688E-11 5.548326456685286E-8 5.598673272986759E-11 1.089444035073601E-8 6.231739818540493E-12
node 2.632259318209395E-14 -7.981913057473224E-14 5.598673272986759E-11 1.977232165455095E-9 -1.953262483746102E-9 -2.235011188771818E-11
peri 1.794536271625363E-12 -6.12089041556677E-12 1.089444035073601E-8 -1.953262483746102E-9 4.117856065123299E-9 2.340164370184522E-11
i -3.763383869145552E-15 1.484678024459464E-14 6.231739818540493E-12 -2.235011188771818E-11 2.340164370184522E-11 1.008057203728683E-10

[ 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 16.0   n/a MPO437511  

357854 (2005 UK227)          Discovered 2005-Oct-25 by Spacewatch at Kitt Peak
Reference: 20130327/Numbers.arcLast Updated: 2013-03-29

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