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109389 (2001 QE169)
Classification: Main-belt Asteroid          SPK-ID: 2109389
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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1605553234618615 5.1011e-08  
a 2.36332487430656 1.3668e-08 au
q 1.983880484666807 1.2023e-07 au
i 3.822480448902175 5.5676e-06 deg
node 243.0095577198819 7.7745e-05 deg
peri 128.8192217686604 7.9307e-05 deg
M 20.69140136750528 1.8766e-05 deg
tp 2458924.226975117624
(2020-Mar-15.72697512)
6.8786e-05 TDB
period 1327.038631650003
3.63
1.1513e-05
3.152e-08
d
yr
n .2712807234197741 2.3535e-09 deg/d
Q 2.742769263946314 1.5863e-08 au
  Orbit Determination Parameters
   # obs. used (total)      539  
   data-arc span      7069 days (19.35 yr)  
   first obs. used      1998-12-15  
   last obs. used      2018-04-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .6096  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-May-07 05:18:31  

Additional Information
 Earth MOID = .986869 au 
 Jupiter MOID = 2.73516 au 
 T_jup = 3.529 
[ 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 15.9   n/a MPO341324  

109389 (2001 QE169)          Discovered 2001-Aug-26 by NEAT at Haleakala
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

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