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(2011 QK9)
Classification: Main-belt Asteroid          SPK-ID: 3576652
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ hide orbit diagram ]

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.


Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3692859171202137 5.7033e-07  
a 2.762705635440895 4.5577e-08 au
q 1.742477351123921 1.5875e-06 au
i 3.090267955184607 1.0089e-05 deg
node 271.8706159106401 0.00016832 deg
peri 104.5784061888868 0.00021856 deg
M 37.39055370764897 5.0199e-05 deg
tp 2459222.295350123322
(2021-Jan-07.79535012)
0.00023061 TDB
period 1677.259835357149
4.59
4.1505e-05
1.136e-07
d
yr
n .2146357960830458 5.3113e-09 deg/d
Q 3.782933919757868 6.2408e-08 au
  Orbit Determination Parameters
   # obs. used (total)      122  
   data-arc span      6607 days (18.09 yr)  
   first obs. used      2002-11-01  
   last obs. used      2020-12-03  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .37559  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 05:14:02  

Additional Information
 Earth MOID = .746532 au 
 Jupiter MOID = 1.7153 au 
 T_jup = 3.236 
[ hide covariance matrix ]
Orbital Elements at Epoch 2458642.5 (2019-Jun-08.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3706857064532169 5.7219e-07  
q 1.737954428656158 1.5924e-06 au
tp 2459221.972657736604
(2021-Jan-07.47265774)
0.00022792 TDB
node 271.8855755161629 0.00016836 deg
peri 104.6737436181687 0.00021835 deg
i 3.090878252107635 1.0077e-05 deg
  Orbit Determination Parameters
   # obs. used (total)      122  
   data-arc span      6607 days (18.09 yr)  
   first obs. used      2002-11-01  
   last obs. used      2020-12-03  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .37559  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 05:14:02  

Additional Information
 Jupiter MOID = 1.7153 au 
 T_jup = 3.236 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.273994751446046E-13 -9.109911520686095E-13 2.998406920493181E-11 -1.356380882771353E-11 6.801967706183423E-11 -1.467123762493512E-12
q -9.109911520686095E-13 2.53560006764384E-12 -7.756585245511049E-11 3.766225321132296E-11 -1.872427860064666E-10 4.103104765060431E-12
tp 2.998406920493181E-11 -7.756585245511049E-11 5.194534371666554E-8 -1.724090917436766E-9 2.316296549753626E-8 5.280735441469335E-11
node -1.356380882771353E-11 3.766225321132296E-11 -1.724090917436766E-9 2.834378374492232E-8 -3.071828480458244E-8 1.296609484912692E-9
peri 6.801967706183423E-11 -1.872427860064666E-10 2.316296549753626E-8 -3.071828480458244E-8 4.767698006056682E-8 -1.476231938908182E-9
i -1.467123762493512E-12 4.103104765060431E-12 5.280735441469335E-11 1.296609484912692E-9 -1.476231938908182E-9 1.015361418871841E-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 17.8   n/a E2020X05  

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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