EIS-Pilot Survey progress

This page gives some help in the reduction of WFI images following the experience gained by the EIS Team with the Pilot Public Survey.

A starting point for instructions on general reduction of CCD images and spectra is given in Iraf is:
ccdproc user guide (press SHIFT-Click to load).

The IRAF MSCRED reduction package, developed at NOAO, is currently used by in our pipeline for the removal of the instrument fingerprint. It exist already compiled for different platform and can be simply downloaded and installed following the instructions present at the MSCRED page at NOAO (see the readme file).

The header of the images provided by the WFI is still lacking (June 1999) some information needed by the MSCRED package to quietly reduce the data. In order to fix the needed keywords we have written a simple IRAF script that have to be used on the images before the reduction with MSCRED.

A general shell script is also provided that allows the additon to the PRIMARY header of the image the keyword FILTER. The value of this keyword is extracted from the standard ESO keyword:HIERARCH ESO INS FILT NAME. The keyword FILTER is the main driver of the reduction with MSCRED.

To properly deal with the different reading ports of each CCD and/or different filters MSCRED need a set-up file.

WARNING: these scripts are provided as they are, without warranty. They have been developed by Mario Nonino as part of EIS team effort to develop the EIS Pilot Public Survey WFI image reduction pipeline and they will eventually be improved and/or corrected in the furure without notice.


Send comments to `<eisadm@eso.org>` Last update: 8 Sep 2000