NGC5466
 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)=    24.647 +-  0.180
 a(1)=     4.060 +-  0.301
 a(2)=     1.028 +-  0.264
 a(3)=    -0.266 +-  0.213
Power-of-x coeffients a(0)+a(1)x+a(2)x^2+..., where x=1+(r/r_c)^2, r_c=1.93
 a(0)=     9.5603
 a(1)=    -1.9203
 a(2)=     3.2089
 a(3)=    -0.5082
log r(arcsec)   mu_V    mu_V(fitted)  residual   weight  data set