What is new in CIA V4.0?

  New and improved algorithms


    o New transient correction: fs using an improved implementation of the 
      Fouks-Schubert transient correction leads to better results and to a 
      reduction in processing time up to a factor of 20.


    o Improved dark correction vilspa using a second order time-dependent 
      correction reduces the dark uncertainty by up to 30 %.


    o Access to long-term  transient and variable flat-field algorithms 
      routines via the SLICE package.


    o back_project allows the possibility to back project a raster MOSAIC to a
      set of EXPOSUREs to verify stability and deglitching.


    o raster_scan has now the option /weight to use the weighted mean to create
      a mosaic.
      

  New and improved functionality


    o CIA is now Y2K compliant.


    o Handling of Solar Sytem Object observations.


    o Handling of polarisation observations.


    o The new tool ximage provides improved functionality for astronomical
      image display, expecially for the analysis of data from raster 
      observations.


    o The new tool xcvf provides an interface to the spectral analysis package
      ISAP.


    o Inclusion of algorithms to treat faint sources for circular variable 
      filter (CVF) observations.


    o No-blocking widgets were introduced so command-line and widgets can be 
      used in parallel.


     o Help functionality was improved.


     o The automatic slicer spdtoscd now warns about saturated pixels. The new
       option method='nomode' slices only according to h/w changes of ISOCAM 
       and ignores s/w settings like the obs-mode.


     o High level colour correction routine corr_colour is available now.


     o The naming convention for theoretical PSFs was rationalized.


     o isocont handles now IRAF FITS files and has the additional options cut1,
       cut2 and thick.


     o CIA's start-up files were rationalized.


     o Obsolete algorithms for transient correction and deglitching were 
       removed.