WFI Workstation in Santiago
Current disk usage
Description of Pages
This is the Wide Field Imager Santiago WS page.
Here you will find informations
about the booking schedule of the WS, informations about the available
software and some tips to cope with the
header changes in the WFI images.
If you are unable to find the informations
you require on this page, please contact
WFI WS Booking Schedule
The WS is reserved on a first come, first served basis and can be booked
for a period of one week to 10 days at time. If no one else requires it, the
period may be extended to another week or 10 days slot.
Shorter booking periods are also possible.
The WS use is reserved for resident astronomers of ESO-Chile; if a visiting
astronomer wishes to use it, this is allowed only if it is done within a
collaboration with a resident astronomer at ESO, who will be also responsible
for the WS booking.
Two long term accounts are set, one (user 2) for WFI pipeline developing and
testing, and another one (user 3), for testing new software installations
before implementing them on a root level.
Only one account (user 1) is currently available for the users and no remote
login is allowed.
Below you can find the current booking schedule for the WS.
If you wish to book it, please contact:
May 2006 booking
May 2004 booking
March 2004 booking
February 2004 booking
January 2004 booking
December 2003 booking
November 2003 booking
October 2003 booking
September 2003 booking
June 2003 booking
May 2003 booking
April 2003 booking
March 2003 booking
February 2003 booking
January 2003 booking
December 2002 booking
November 2002 booking
June 2002 booking
May 2002 booking
February 2002 booking
January 2002 booking
December 2001 booking
April 2001 booking
May 2001 booking
June 2001 booking
July 2001 booking
August 2001 booking
August/Sep 2001 booking
October 2001 booking
November 2001 booking
WFI WS Usage Statistics
Below are displayed the statistics of WS booking for the period
April 2000-March 2001. The statistics takes into account the effective
use of the machine (batch processes, remote and direct access), but
no test time for software packages has been included.
Usage statistics April 2000 - March 2001
How to retrieve data from the archive
Archive retrieval for WFI data.
Software tips and tricks
There are different ways to reduce WFI data; below we list a number of
currently available packages. If you know of any software you like to see
included in the list, please contact
A well developed package for
reducing mosaic data is mscred,
under IRAF. The major problem in using this software
is that the some
keywords in the ESO
header are not recognized by IRAF. To cope with this, a special single task
package has been written by F. Valdes at NOAO, called
task transforms the original header into a new one readable by IRAF.
Some WFI data
reduction tips and
software tools from the
ESO Imaging Survey Team.
Mosaic package of
flips Mosaic Reduction Package.
slides.ps Available software and facilities for WFI
If you have problems along the way....
Due to the fact that the headers are currently being adjusted to become VLT
compliant, it might happen that the esowfi package does not work
In this case do the following:
a) copy the raw fits file into a new one (es: cp wfixxxxx.fits
b) start iraf
c) hedit tryxxxxx.fits fields=RA,DEC delete=yes verify=yes update=yes
and type return
This sets up correctly the CRVAL parameters.
WARNING: the new esowfi (release date:
June 13, 2000) might NOT
correctly with older data, while the previous one (April 2000) does not
have any problems.
A copy of the old esowfi package has been saved on the WS disk, should you
need it, but be aware that the November 2000 SCISOFT release will
contain the new esowfi package only, so...take care of doing backups
If you keep having problems, you might check the following links:
The FTU command (short for FITS
Translation Utility), is a tool used to manipulate FITS files.
saft command. It converts the long ESO keywords (HIERARCH_xxx) into
IRAF compatible ones.
[ESO home page]
[ESO - Santiago home page]
[ESO - La Silla home page]