WFS Library Flats, Biases and Fringe Frames
For each WFS run on the INT a series of library flat field and bias
frames were created. The flat field frames were first bias-corrected
using the master bias frames and the overscan region [14:53,1:4096] to
monitor bias level; trimmed to the data region [54:2101,1:4096];
linearised ( see WFC foibles ); and finally
imcombined to create the library files accessible below.
The simplest way to access a file is to select the appropriate
month/year, click on the link to obtain a listing of available files,
and then right click to download the file.
From December 2000 the fringe frames were automatically created in
the pipeline and are also accessible from here.
Note that we have now moved the earlier fringe frames into the appropriate
Note that runs from September 1999 (inclusive) date from the SDSU
controller upgrade and the change to multiextension FITS. Earlier
runs are also available on request if not in the following lists.
Note that these have all been converted to multiextension FITS