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(2011 HQ)
Classification: Amor [NEO]          SPK-ID: 3563858
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

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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 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3075262990728287 7.8388e-08  
a 1.636721661705232 2.4697e-07 au
q 1.133386706468692 1.3587e-07 au
i 11.91496384463308 1.3565e-05 deg
node 70.36465735964433 1.8117e-05 deg
peri 145.0591557712742 0.00014861 deg
M 122.8264208230383 0.00041937 deg
tp 2458739.554406103673
(2019-Sep-13.05440610)
0.00083212 TDB
period 764.8225290063775
2.09
0.00017311
4.739e-07
d
yr
n .470697431556698 1.0654e-07 deg/d
Q 2.140056616941772 3.2293e-07 au
  Orbit Determination Parameters
   # obs. used (total)      174  
   data-arc span      626 days (1.71 yr)  
   first obs. used      2011-04-24  
   last obs. used      2013-01-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      2  
   norm. resid. RMS      .52535  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-06 08:53:39  

Additional Information
 Earth MOID = .149784 au 
 Jupiter MOID = 2.8499 au 
 T_jup = 4.223 
[ hide covariance matrix ]
Orbital Elements at Epoch 2455705.5 (2011-May-24.0) TDB
Reference: JPL 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3078468432408512 7.81e-08  
q 1.132810203110634 1.3723e-07 au
tp 2455679.456454328560
(2011-Apr-27.95645433)
0.00015362 TDB
node 70.39991381561906 1.8116e-05 deg
peri 144.9295751950853 0.00014799 deg
i 11.91432457895611 1.3565e-05 deg
  Orbit Determination Parameters
   # obs. used (total)      174  
   data-arc span      626 days (1.71 yr)  
   first obs. used      2011-04-24  
   last obs. used      2013-01-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      2  
   norm. resid. RMS      .52535  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-06 08:53:39  

Additional Information
 Jupiter MOID = 2.8499 au 
 T_jup = 4.223 
Orbit Covariance (6×6)
  e q tp node peri i
e 6.099609181755104E-15 -1.758405273094814E-15 5.903678585873288E-12 -1.312009924366244E-13 5.575276868669856E-12 -6.131392086355703E-14
q -1.758405273094814E-15 1.883198911804934E-14 1.338232688820912E-11 -5.651176126326807E-13 1.297757651284714E-11 1.41342722970729E-12
tp 5.903678585873288E-12 1.338232688820912E-11 2.360042031326318E-8 -7.389109512137347E-10 2.257900770155486E-8 1.125373523623745E-9
node -1.312009924366244E-13 -5.651176126326807E-13 -7.389109512137347E-10 3.281939906017731E-10 -1.005828602011644E-9 -1.511939886838867E-10
peri 5.575276868669856E-12 1.297757651284714E-11 2.257900770155486E-8 -1.005828602011644E-9 2.189971332209E-8 1.190191665236529E-9
i -6.131392086355703E-14 1.41342722970729E-12 1.125373523623745E-9 -1.511939886838867E-10 1.190191665236529E-9 1.840205077453806E-10

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 21.0   n/a MPO249982  

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