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266708 (2009 QE31)
Classification: Main-belt Asteroid          SPK-ID: 2266708
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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1596794313834826 3.957e-08  
a 3.19310862365833 5.1583e-08 au
q 2.683234854286873 1.2395e-07 au
i 15.90615327878404 4.9609e-06 deg
node 128.3828537644964 1.7241e-05 deg
peri 255.6870262041517 2.5477e-05 deg
M 305.8268132337105 2.1389e-05 deg
tp 2459314.117904793922
(2021-Apr-09.61790479)
0.00012893 TDB
period 2084.101978583767
5.71
5.0502e-05
1.383e-07
d
yr
n .172736269001882 4.1857e-09 deg/d
Q 3.702982393029787 5.982e-08 au
  Orbit Determination Parameters
   # obs. used (total)      428  
   data-arc span      5874 days (16.08 yr)  
   first obs. used      2003-07-25  
   last obs. used      2019-08-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5066  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 04:36:49  

Additional Information
 Earth MOID = 1.73941 au 
 Jupiter MOID = 1.9765 au 
 T_jup = 3.117 
[ 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 15.1   n/a MPO494441  

266708 (2009 QE31)          Discovered 2009-Aug-24 by La Sagra at La Sagra
Reference: 20110218/Numbers.arcLast Updated: 2011-02-22

[ show close-approach data ]
Alternate Designations
 2009 QE31 = 2003 QX110 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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