Palomar 2
21 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)=    23.048 +-  0.558
 a(1)=     3.942 +-  0.844
 a(2)=     0.385 +-  0.615
 a(3)=     0.084 +-  0.543
Power-of-x coeffients a(0)+a(1)x+a(2)x^2+..., where x=1+(r/r_c)^2, r_c=0.70
 a(0)=     5.6144
 a(1)=     3.0397
 a(2)=    -0.5473
 a(3)=     0.1584
log r(arcsec)   mu_V    mu_V(fitted)  residual   weight  data set