8. Getting Started with LWS Data

LWS data are supplied via ftp^8.1 from the ISO Data Archive (IDA) in the form of FITS files.

Although the main product, the LSAN files, are in a suitable format for any astronomical package, a dedicated software package for analysing both SWS and LWS data exists: the ISO Spectrometer Analysis Package (ISAP) (see section 8.2.2).

For some data sets, observers may want to re-run the Auto-Analysis processing stage interactively before proceeding with the ISAP reduction. The LWS Interactive Analysis (LIA) package is produced for this purpose (see Section 8.2.3).

• 8.1 Retrieving and Reading the Data
• 8.2 Analysing the Data
  • 8.2.1 LWS data reduction recipes
  • 8.2.2 The ISO Spectral Analysis Package (ISAP)
  • 8.2.3 The LWS Interactive Analysis (LIA)
• 8.3 Analysing Parallel/Serendipity Mode Data
• 8.4 Where to Find the Calibration Parameters
• 8.5 Useful Web Addresses