ATNORM - Normalises model atmosphere fluxes

Syntax:

ATNORM [mode]

Description:

Normalises model atmosphere fluxes stored in the `current' arrays to the cursor position. The angular diameter implied by the normalising constant is printed at the terminal. The normalised fluxes are left in the `current' arrays, and are plotted if mode=1 (the default). No plot is produced if mode=0.

If the cursor Y value is negative, the plot is assumed to be of X v Log10(FLUX). In this case, the Y values plotted (and left in the `current' arrays) are logs of the normalised model atmosphere fluxes; however, the unnormalised atmosphere data in the `current' arrays MUST be linear in Y to start off with (i.e. in the form resulting from an ATLASRD). ATNORM can also be used to normalise black-body fluxes generated with BBODY.