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109117 (2001 QE42)
Classification: Main-belt Asteroid          SPK-ID: 2109117
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2039995214698742 6.87e-08  
a 2.565094568141768 1.3843e-08 au
q 2.041816503715873 1.7102e-07 au
i 2.421749568115475 4.8172e-06 deg
node 287.9914074855919 0.00012367 deg
peri 84.29544799743751 0.00012427 deg
M 168.0758705318717 1.3752e-05 deg
tp 2458299.922206905763
(2018-Jun-30.42220691)
5.5583e-05 TDB
period 1500.560459486657
4.11
1.2147e-05
3.326e-08
d
yr
n .239910359975203 1.942e-09 deg/d
Q 3.088372632567662 1.6666e-08 au
  Orbit Determination Parameters
   # obs. used (total)      568  
   data-arc span      8272 days (22.65 yr)  
   first obs. used      1997-09-02  
   last obs. used      2020-04-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4981  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 19:01:13  

Additional Information
 Earth MOID = 1.04378 au 
 Jupiter MOID = 2.3895 au 
 T_jup = 3.402 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.6   n/a MPO469114  

109117 (2001 QE42)          Discovered 2001-Aug-16 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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