What is LIA?
What LIA Routines are there?
Previous versions of LIA
What is LIA?
The LWS Interactive Analysis (LIA) is a software package
designed to allow the user to inspect, reprocess and recalibrate their
LWS
data with the possibility of interactively customizing the various data
reduction stages to their particular set of data.
LIA is a joint developement of the ISO-LWS Instrument
Team at Rutherford Appleton
Laboratories (RAL, UK - the PI Institute) and the
Infrared
Processing and Analysis Center (IPAC/Caltech, USA).
The latest OLP 10 version of the LWS data can be accessed from the
ISO data archive are produced by an automatic
reduction pipeline (Off-Line Processing or
OLP);
the calibration accuracy of these products is generally good within 20%
on average. LIA allows the user to check the quality of his/her
scientific and calibration data; besides, there are cases where the quality
of the data may be worse than normal for a series of reasons, and
this is where LIA also enters into play.
What LIA Routines are there?
Three classes of routines are available under LIA:
Inspection Routines
:
designed to allow the LWS data user to inspect his/her pipeline products
as produced through the Standard Processing stage (SPD) and the Auto Analysis
stage (AAR).
Interactive Routines
:
designed to allow the user to customize the data reduction process and to tune the
algorithms used in the data reduction.
Recalibration Routines
:
designed to allow the user to recalibrate the data reprocessed using the
interactive routines, or to make a complete non-interactive reprocessing
using defaults other than those used by the automatic OLP pipeline.
Data Reduction and Analysis Recipe for LWS via LIA and ISAP.
Documented Headers of all LIA Procedures
LIA is a data reduction package package which is proving
extremely helpful to understand and improve the quality of the calibrated
LWS spectra. Even now we are on version 10.2 of LIA, occasional bugs are being found,
and users are requested to report any bugs encountered to the
LIA software manager.
More details about the problems and corrected versions
of the routines are available here
Previous versions of LIA
LIA 10.1 was released on
30th May 2003.
LIA 10.0 was released on
1st November 2001.
LIA 8.1 patch update was released on 20th November 2000.
LIA 8.0 was released on 4th May 2000.
NOTE. LIA 8.1 patch requires LIA 8.0 directories and
files to have been downloaded first.
UK LWS Main Page  
Email:
Timothy Grundy: t.w.grundy@rl.ac.uk
Sunil Sidher: s.d.sidher@rl.ac.uk
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Last modified - 1 September 2003