EXTRACT_FLAT - Extract a flatfield from a SCUBA demodulated data file

Description:

This routine extracts the flatfield information from a SCUBA demodulated data file and writes it out in a format suitable for use by CHANGE_FLAT. The full flatfield is extracted: Bolometer positions and relative responsivities.

Usage:

extract_flat in file

Parameters:

IN = NDF (Read)

The name of the NDF containing the demodulated data with the required flatfield.

MSG_FILTER = CHAR (Read)

Message filter level. Allowed values are QUIET, NORM and VERB. Default is NORM. There are no verbose messages.

FILE = FILE (Write)

The name of the ascii file to which the flatfield information will be written

Examples:

extract_flat 19971017_dem_0002 oldflat.dat

This will read the flatfield from 19971017_dem_0002.sdf and write it to a text file

Related Applications

SURF: change_flat, flatfield