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109454 (2001 QQ209)
Classification: Main-belt Asteroid          SPK-ID: 2109454
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1477816474712808 7.3923e-08  
a 2.586005572949199 1.3965e-08 au
q 2.203841409008853 1.903e-07 au
i 21.21534949375867 6.7107e-06 deg
node 321.1947491034671 1.9477e-05 deg
peri 90.94443759420905 4.0357e-05 deg
M 120.7224017796033 2.9425e-05 deg
tp 2458491.136315943279
(2019-Jan-07.63631594)
0.00012493 TDB
period 1518.94696889141
4.16
1.2304e-05
3.369e-08
d
yr
n .2370062993461469 1.9199e-09 deg/d
Q 2.968169736889545 1.6029e-08 au
  Orbit Determination Parameters
   # obs. used (total)      548  
   data-arc span      7660 days (20.97 yr)  
   first obs. used      1999-02-12  
   last obs. used      2020-02-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55146  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 03:26:00  

Additional Information
 Earth MOID = 1.33038 au 
 Jupiter MOID = 2.47143 au 
 T_jup = 3.312 
[ show covariance matrix ]

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 15.2   n/a MPO453554  

109454 (2001 QQ209)          Discovered 2001-Aug-23 by LONEOS at Anderson Mesa
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 2001 QQ209 = 1999 CO11 = 2001 OR48 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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