Normal and Skew Ratios to Main Harmonic data for hardat.ru3 at radius 0.019 m.  
Main Harmonic = 3

All angles rotated so Main Harmonic angle is equal to the ideal 

 For    Imag =   12.00000 +/-   0.00041 

   n      BLn_norm     sigBLn_norm         BLn_skew     sigBLn_skew  
             (%)          (%)                (%)          (%)     
  ---  -------------+--------------    -------------+--------------  
   1    1.30275744     0.000246        -1.20721158    -0.000228
   2    0.05358503     0.000496         0.15562222     0.001439
   3  -100.00000000    -0.005901         0.00000000     0.000000
   4   -0.06230975    -0.000427        -0.11979800    -0.000820
   5    0.00625608     0.000083        -0.10687712    -0.001424
   6   -0.00702990    -0.000144        -0.02798720    -0.000573
   7   -0.02611337    -0.000976         0.02117639     0.000791
   8    0.00368852     0.000894        -0.00191521    -0.000464
   9    0.28066010     0.000439        -0.00220434    -0.000003
  10   -0.00095305    -0.000417         0.00281567     0.001231
  11    0.00941695     0.000950        -0.00418482    -0.000422
  12   -0.00141014    -0.000829        -0.00225320    -0.001325
  13   -0.00031174    -0.000028        -0.01088828    -0.000988
  14    0.00110757     0.000294        -0.00361367    -0.000960
  15    0.01371310     0.001123        -0.00089880    -0.000074
  16   -0.00022963    -0.002524        -0.00012333    -0.001356