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

10.2. EXAMINING THE AAR DATA PRODUCTS 71
All the images that you will now view with sad display areheldinSADswithinIDL’s
memory. These images are either EXPOSUREs or MOSAICs: the former is taken from the
CMAP file and the latter from the CMOS file. Within CIA, origin SADs hold EXPOSUREs and
future SADs hold MOSAICs. If you think that a MOSAIC is built from a set of EXPOSUREs
then this terminology makes more sense.
Now try browsing through your data. Initially, the sad display image window will display
an EXPOSURE from the CMAP.
• You can flick through the EXPOSUREs in your AOT by clicking on the button Next SAD
or by using the slider.
• You can also display a MOSAIC from the CMOS file by clicking on the future button.
After the future button is selected, clicking on the button Next SAD allows you to flick
through all the MOSAICs in the CMOS.
• Clicking on the button colour will load the colour table.
• By clicking on the button Grid a grid is displayed indicating the astronomical coordinates
of the current image.
• Glitches and point sources detected by AA may be displayed by clicking on the buttons
Glitches and Sources. These will be marked on the displayed image. Note that this functionality
will only be activated when the keyword /all is set when invoking sad display.
• Buttons at the top of the window allow you to toggle between the CCIM and CMAP
EXPOSUREs, zoom the image in the window, and toggle between the data image of the
EXPOSURE, its RMS error and an image representing the integration time per pixel in
the EXPOSURE (also called the weight of the EXPOSURE).
• Clicking on the zoom buttons activates mouse tracking to display pixel values with coordinates.
Pop-up windows with error messages may appear when you try to attempt an undefined
action (you may regard these as more warning messages than errors) but just hit O.K. and
ignore them.