NAME

SAOfocus - compute geometric focus and RMS focus

VERSION

SAOfocus Version D19990113

PARAMETERS

SAOfocus uses an IRAF-compatible parameter interface. A template parameter file is in /proj/axaf/simul/lib/uparm/SAOfocus.par.

input: input file

This parameter specifies the name of the file/stream for the input bpipe. If the filename is the string stdin, it reads UNIX standard input.

output: output file

This parameter specifies the name of the file/stream for the output bpipe. If the filename is the string stdin, it write to UNIX standard output.

logfile: log file

This parameter specifies the name of the file to contain the raytrace summary and error messages.

gi_filename: OSAC-style 'gi' file

This parameter specifies the name of the OSAC-style 'gi' file containing the optic prescription.

onlygoodrays: yes|no

NOTE: This parameter must be set to no.

help: yes|no

Print out a simple help message and exit.

version: yes|no

Print out SAOfocus's version and exit.

debug: list

A list of debug flags. None are presently defined.

DESCRIPTION

SAOfocus reads BPipe format rays and finds the focus position minimizing RMS spot size. The rays are moved to a specified focal plane (see the OSAC V7.0 manual for a description of the "gi" file parameters) and the Z-coordinate is set to 0.0.

Note that onlygoodrays = yes is required for correct operation of this module.

OTHER

This version of SAOfocus makes extensive use of routines from the NASA Goddard Space Flight Center code OSAC, "Optical Surface Analysis Code".