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109176 (2001 QE66)
Classification: Main-belt Asteroid          SPK-ID: 2109176
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09057799887159472 3.7043e-08  
a 2.726201676266042 1.3716e-08 au
q 2.479267783909477 1.05e-07 au
i 3.275448715356646 4.0529e-06 deg
node 220.7534529158579 6.4076e-05 deg
peri 177.1477453417689 6.7366e-05 deg
M 15.23551885695075 2.0349e-05 deg
tp 2458930.919083335189
(2020-Mar-22.41908333)
9.2875e-05 TDB
period 1644.12713702258
4.50
1.2407e-05
3.397e-08
d
yr
n .2189611690565119 1.6524e-09 deg/d
Q 2.973135568622607 1.4958e-08 au
  Orbit Determination Parameters
   # obs. used (total)      878  
   data-arc span      7986 days (21.86 yr)  
   first obs. used      1998-01-27  
   last obs. used      2019-12-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51642  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 03:20:45  

Additional Information
 Earth MOID = 1.48656 au 
 Jupiter MOID = 2.3879 au 
 T_jup = 3.348 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457117.5 (2015-Apr-05.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09067582456708112 3.7175e-08  
q 2.479365828045598 1.0536e-07 au
tp 2457277.475260995642
(2015-Sep-11.97526100)
9.1779e-05 TDB
node 220.8009358179143 6.4184e-05 deg
peri 175.2909218916833 6.7428e-05 deg
i 3.270413360230374 4.0543e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      878  
   data-arc span      7986 days (21.86 yr)  
   first obs. used      1998-01-27  
   last obs. used      2019-12-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51642  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 03:20:45  

Additional Information
 Jupiter MOID = 2.3879 au 
 T_jup = 3.348 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.381948383542831E-15 -3.890994827063925E-15 -5.184939062015052E-13 -7.231484918450701E-16 -9.929132983054043E-14 -3.533022836986572E-16
q -3.890994827063925E-15 1.110099257090321E-14 1.409071778931464E-12 2.593293373927439E-15 2.630077124858015E-13 1.081753558431903E-15
tp -5.184939062015052E-13 1.409071778931464E-12 8.423456994953712E-9 -2.232537731035268E-13 1.90974887879072E-9 1.07988255922123E-12
node -7.231484918450701E-16 2.593293373927439E-15 -2.232537731035268E-13 4.119566350616923E-9 -4.112669127486072E-9 -4.979540921489667E-11
peri -9.929132983054043E-14 2.630077124858015E-13 1.90974887879072E-9 -4.112669127486072E-9 4.546473641490051E-9 4.994158047811622E-11
i -3.533022836986572E-16 1.081753558431903E-15 1.07988255922123E-12 -4.979540921489667E-11 4.994158047811622E-11 1.643745887420776E-11

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.4   n/a MPO449652  

109176 (2001 QE66)          Discovered 2001-Aug-17 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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