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181188 (2005 SL109)
Classification: Main-belt Asteroid          SPK-ID: 2181188
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02368059978459194 8.2167e-08  
a 2.937331656649036 2.6287e-08 au
q 2.867773881253318 2.378e-07 au
i 1.633258784299241 9.2187e-06 deg
node 4.696687300246576 0.00016373 deg
peri 216.2876708866635 0.00020503 deg
M 163.6125850586508 0.00012513 deg
tp 2458364.815953561786
(2018-Sep-03.31595356)
0.00063705 TDB
period 1838.772100629738
5.03
2.4684e-05
6.758e-08
d
yr
n .195782826961921 2.6282e-09 deg/d
Q 3.006889432044755 2.691e-08 au
  Orbit Determination Parameters
   # obs. used (total)      308  
   data-arc span      9180 days (25.13 yr)  
   first obs. used      1995-11-18  
   last obs. used      2021-01-05  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .61716  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:29:34  

Additional Information
 Earth MOID = 1.85755 au 
 Jupiter MOID = 1.95663 au 
 T_jup = 3.273 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456845.5 (2014-Jul-07.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02187817884392239 7.9456e-08  
q 2.875327617438633 2.289e-07 au
tp 2456558.185733000707
(2013-Sep-22.68573300)
0.00075141 TDB
node 4.928031018955989 0.00016311 deg
peri 222.9370635090413 0.00021925 deg
i 1.636334918677997 9.2291e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      308  
   data-arc span      9180 days (25.13 yr)  
   first obs. used      1995-11-18  
   last obs. used      2021-01-05  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .61716  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:29:34  

Additional Information
 Jupiter MOID = 1.95663 au 
 T_jup = 3.273 
Orbit Covariance (6×6)
  e q tp node peri i
e 6.313287695931993E-15 -1.807682027496938E-14 -3.22067365663457E-11 -2.685869951637622E-14 -6.383592848729747E-12 5.198853083384532E-16
q -1.807682027496938E-14 5.239610457954615E-14 9.572749544358474E-11 7.184263539246753E-14 1.897547188020186E-11 -1.28227882428719E-15
tp -3.22067365663457E-11 9.572749544358474E-11 5.646173888949168E-7 8.787784646781659E-11 1.100953285137493E-7 -1.802051705752321E-11
node -2.685869951637622E-14 7.184263539246753E-14 8.787784646781659E-11 2.660529992416224E-8 -2.657649344853259E-8 4.935590753003929E-10
peri -6.383592848729747E-12 1.897547188020186E-11 1.100953285137493E-7 -2.657649344853259E-8 4.806916639371822E-8 -4.968666025920544E-10
i 5.198853083384532E-16 -1.28227882428719E-15 -1.802051705752321E-11 4.935590753003929E-10 -4.968666025920544E-10 8.517703699189236E-11

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 16.19   n/a E2021B55  

181188 (2005 SL109)          Discovered 2005-Sep-26 by Spacewatch at Kitt Peak
Reference: 20080321/Numbers.arcLast Updated: 2008-03-26

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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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