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308542 (2005 UT204)
Classification: Main-belt Asteroid          SPK-ID: 2308542
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1625072644926515 5.7246e-08  
a 3.125112170274642 4.9083e-08 au
q 2.617258740250617 2.0492e-07 au
i 5.23466863434497 1.1625e-05 deg
node 33.86697057848723 6.2236e-05 deg
peri 262.6172703587293 7.5522e-05 deg
M 299.6061092442624 4.0594e-05 deg
tp 2459339.022352631991
(2021-May-04.52235263)
0.00022567 TDB
period 2017.88699854445
5.52
4.7539e-05
1.302e-07
d
yr
n .1784044400205148 4.203e-09 deg/d
Q 3.632965600298668 5.7059e-08 au
  Orbit Determination Parameters
   # obs. used (total)      145  
   data-arc span      6229 days (17.05 yr)  
   first obs. used      2003-04-07  
   last obs. used      2020-04-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52564  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 20:13:17  

Additional Information
 Earth MOID = 1.60812 au 
 Jupiter MOID = 1.6138 au 
 T_jup = 3.188 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457777.5 (2017-Jan-24.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1613809239041904 5.7207e-08  
q 2.623153354411925 2.0498e-07 au
tp 2457319.558882857268
(2015-Oct-24.05888286)
0.00024272 TDB
node 33.88605147288324 6.2212e-05 deg
peri 262.5617359801948 7.5681e-05 deg
i 5.234341473580802 1.1623e-05 deg
  Orbit Determination Parameters
   # obs. used (total)      145  
   data-arc span      6229 days (17.05 yr)  
   first obs. used      2003-04-07  
   last obs. used      2020-04-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52564  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 20:13:17  

Additional Information
 Jupiter MOID = 1.6138 au 
 T_jup = 3.188 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.272659535020209E-15 -1.156247042739891E-14 3.639748488323894E-12 -2.770469580804547E-15 7.10593879326297E-13 2.449334785878535E-15
q -1.156247042739891E-14 4.201857252219472E-14 -1.53996244814728E-11 5.136366785453336E-15 -2.887831429297148E-12 -6.151910641501979E-15
tp 3.639748488323894E-12 -1.53996244814728E-11 5.891348510536222E-8 -1.844417636019379E-11 1.047079638775842E-8 7.224441246908098E-12
node -2.770469580804547E-15 5.136366785453336E-15 -1.844417636019379E-11 3.87036371133313E-9 -3.857895920313177E-9 -2.821053444735048E-10
peri 7.10593879326297E-13 -2.887831429297148E-12 1.047079638775842E-8 -3.857895920313177E-9 5.727663663693885E-9 2.825707983959726E-10
i 2.449334785878535E-15 -6.151910641501979E-15 7.224441246908098E-12 -2.821053444735048E-10 2.825707983959726E-10 1.350926033734516E-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 15.9   n/a MPO455273  

308542 (2005 UT204)          Discovered 2005-Oct-26 by Spacewatch at Kitt Peak
Reference: 20111210/Numbers.arcLast Updated: 2011-12-12

[ show close-approach data ]
Alternate Designations
 2005 UT204 = 2010 KP33 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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