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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3692523400731479 5.6992e-07  
a 2.762456026625788 4.6698e-08 au
q 1.742412674445045 1.5873e-06 au
i 3.090378013155674 1.0089e-05 deg
node 271.870073702969 0.00016831 deg
peri 104.5636892319995 0.00021857 deg
M 355.3280350928179 4.9425e-05 deg
tp 2459222.263992040685
(2021-Jan-07.76399204)
0.00023065 TDB
period 1677.032531344976
4.59
4.2524e-05
1.164e-07
d
yr
n .214664887693789 5.4432e-09 deg/d
Q 3.782499378806529 6.3942e-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 = .745861 au 
 Jupiter MOID = 1.71486 au 
 T_jup = 3.236 
[ show covariance matrix ]

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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