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12106 Menghuan (1998 KQ31)
Classification: Main-belt Asteroid          SPK-ID: 2012106
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1012482371273354 6.4703e-08  
a 2.378121237155829 1.569e-08 au
q 2.137340654218724 1.4985e-07 au
i 5.772345700089868 6.9177e-06 deg
node 202.475845684601 5.2381e-05 deg
peri 195.24606061578 6.0626e-05 deg
M 138.4133926236334 2.8758e-05 deg
tp 2456885.478894543006
(2014-Aug-15.97889454)
0.00010687 JED
period 1339.520652229575
3.67
1.3257e-05
3.63e-08
d
yr
n .2687528552850568 2.6597e-09 deg/d
Q 2.618901820092935 1.7279e-08 au
  Orbit Determination Parameters
   # obs. used (total)      777  
   data-arc span      7647 days (20.94 yr)  
   first obs. used      1994-04-16  
   last obs. used      2015-03-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .51108  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jun-04 16:13:52  

Additional Information
 Earth MOID = 1.14335 au 
 Jupiter MOID = 2.7625 au 
 T_jup = 3.526 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.2 mag n/a MPO266023  

12106 Menghuan           Discovered 1998 May 22 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Meng Huan (b. 1985) is a finalist in the 2002 Intel International Science and Engineering Fair for his earth and space sciences project. He attends the Beijing No. 80 High School, Beijing, China.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20020724/MPCPages.arcLast Updated: 2003-10-02

Alternate Designations
 1998 KQ31 = 1995 QN8 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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