GRADEFLAT

Name

gradeflat

Purpose (one Line Only)

Automatic quality grading of a set of CCD flat images against a superflat

Description

Calling Sequence

gradeflat,cube,flat,grade,fail

Inputs

cube - 3-d cube of original flat images, if you need to subtract overscan
and crop, this should be done prior to building the cube
flat - 2-d image which is the superflat frame

Optional Input Parameters

Keyword Input Parameters

Outputs

grade - This is the grade of this cube/flat pair. This is related to
a unit of standard deviation. A bad set of data will have
a large value, typically much greater than 3. A good set of
data will be comfortably less than 3.
fail - This is the number of frames that fail the test of being consistent
with the ensemble of frames. This number will be somewhere
between 0 and the number of frames in the cube. Don't expect
this number to be zero but it should be small.

Keyword Output Parameters

Common Blocks

Side Effects

Restrictions

This tool is ok but could be better.

Procedure

Modification History

Written by Marc W. Buie, Southwest Research Institute, 2015/04/26