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109188 (2001 QE72)
Classification: Main-belt Asteroid          SPK-ID: 2109188
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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2617683630219346 4.7369e-08  
a 2.88112985244652 1.9104e-08 au
q 2.126941207317966 1.3772e-07 au
i 3.951815433123181 6.8264e-06 deg
node 25.558550884956 6.251e-05 deg
peri 313.8916801606957 6.4209e-05 deg
M 311.9075337572232 1.8286e-05 deg
tp 2459239.125704435706
(2021-Jan-24.62570444)
9.2567e-05 TDB
period 1786.251783453852
4.89
1.7766e-05
4.864e-08
d
yr
n .2015393369147059 2.0045e-09 deg/d
Q 3.635318497575073 2.4104e-08 au
  Orbit Determination Parameters
   # obs. used (total)      578  
   data-arc span      8252 days (22.59 yr)  
   first obs. used      1996-10-06  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54767  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 06:46:19  

Additional Information
 Earth MOID = 1.12074 au 
 Jupiter MOID = 1.77795 au 
 T_jup = 3.239 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456482.5 (2013-Jul-09.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2613615546061702 4.7568e-08  
q 2.126525181864458 1.3791e-07 au
tp 2455672.824143716734
(2011-Apr-21.32414372)
6.8808e-05 TDB
node 25.59208799436129 6.2457e-05 deg
peri 314.3717126637321 6.4156e-05 deg
i 3.954163330652503 6.83e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      578  
   data-arc span      8252 days (22.59 yr)  
   first obs. used      1996-10-06  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54767  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 06:46:19  

Additional Information
 Jupiter MOID = 1.77795 au 
 T_jup = 3.239 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.262684246419047E-15 -6.525952002264004E-15 1.512128408287585E-12 -3.209132127469961E-16 2.717325852456139E-13 1.434413169711887E-15
q -6.525952002264004E-15 1.901951495984596E-14 -3.86114644978748E-12 1.762715560993464E-15 -6.689393505696752E-13 -2.790995322970917E-15
tp 1.512128408287585E-12 -3.86114644978748E-12 4.734507781921628E-9 -3.910049664101986E-12 1.019716059732936E-9 3.499606092422973E-12
node -3.209132127469961E-16 1.762715560993464E-15 -3.910049664101986E-12 3.900914082954728E-9 -3.891715418848974E-9 4.627741415220669E-11
peri 2.717325852456139E-13 -6.689393505696752E-13 1.019716059732936E-9 -3.891715418848974E-9 4.116037569245466E-9 -4.533603521894938E-11
i 1.434413169711887E-15 -2.790995322970917E-15 3.499606092422973E-12 4.627741415220669E-11 -4.533603521894938E-11 4.664865564384628E-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 15.4   n/a MPO469115  

109188 (2001 QE72)          Discovered 2001-Aug-21 by Yeung, W. K. Y. at Desert Eagle
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 2001 QE72 = 1996 TW61 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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