NGC6362
 6 iterations.
Chebyshev coeffients a(0)T_0(u)+a(1)T_1(u)+..., where u is log (r/arcsec) mapped to [-1,1]
 a(0)=    21.549 +-  0.239
 a(1)=     2.859 +-  0.386
 a(2)=     0.524 +-  0.382
 a(3)=    -0.189 +-  0.338
 a(4)=     0.075 +-  0.279
Power-of-x coeffients a(0)+a(1)x+a(2)x^2+..., where x=1+(r/r_c), r_c=1.83
 a(0)=     8.7032
 a(1)=    -1.8970
 a(2)=     4.9801
 a(3)=    -2.2108
 a(4)=     0.3734
log r(arcsec)   mu_V    mu_V(fitted)  residual   weight  data set