ISOCAM Interactive Analysis User's Manual Version 5.0 - ISO - ESA

108 CHAPTER 13. DATA CALIBRATION
2. Start x cia – simply type x cia on the CIA command line.
3. Choose AOT Type (default is raster scan).
4. Data / Load / SSCD
5. Data / AOT Info
6. Process / None
7. Deglitch / Spatial
8. Process / Selected
9. Data / Save / IDL File (my file.xdr)
10. CIA / Quit
If the user answers ‘Yes’ to the question ‘Average ISODATA.CUBE into ISODATA.IMAGE
?’ after step 10, the removing of dark and background can be made in a CIA session with the
following IDL commands:
CIA> restore, ‘my_file.xdr’, /verb
CIA> source = isodata.image(*,*,0)
CIA> background = isodata.image(*,*,1)
CIA> image = source - background
CIA> tviso, image
If the user answers ‘No’ to the question ‘Average ISODATA.CUBE into ISODATA.IMAGE
?’ after step 9, the removing of dark and background can be done in a CIA session with the
following IDL commands:
CIA> restore, ’my_file.xdr’, /verb
CIA> on_source = isodata.cube(*,*,isodata.from(0):isodata.to(0))
CIA> off_source = isodata.cube(*,*,isodata.from(1):isodata.to(1))
CIA> source = reduce_cube(on_source)
CIA> background = reduce_cube(off_source)
CIA> image = source - background
CIA> tviso, image