psfsim.wfi_data
Data for the WFI.
This contains the following arrays:
wavelength: shape (21,). The grid of wavelengths in microns.
exponents: shape (21, 2). Here exponents[j,0] is the power of x, and exponents[j,1] is the power of y.
angle_to_fpa_poly_coefficients and fpa_to_angle_poly_coefficients:
shape (21, 21, 2). Here fpa_to_angle_poly_coefficients[i,j,0] are the coefficients for the x-angle in terms of x^exponents[j,0] * y^exponents[j,1] at wavelength i; and fpa_to_angle_poly_coefficients[i,j,1] are the coefficients for the y-angle in terms of x^exponents[j,0] * y^exponents[j,1] at wavelength i.
scapos: shape (18, 2). The centers of each chip in FPA coordinates, in mm.
Also defines the scalars:
pix: float. Pixel size in microns.
nside: int. SCA side length in pixels.
And the dictionaries:
cdpar: dict. Contains the keys:
sigma_s: float. Charge diffusion length in microns.
w: list of float. Weights of each Gaussian component.
c: list of float. Scale of each Gaussian component in units of sigma_s.