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

94 CHAPTER 12. DATA SLICING
• Select the ‘Nb Exposure’ item in the Advanced Slicing menu. A window appears. Enter
the number 30 in the field, since you want to select all SCDs with at least 30 frames. Hit
the ‘Enter’ or ‘Return’ key. All the wished for SCDs have now been selected.
• Click on the ‘Redisplay’ button.
If you are not yet satisfied with the displayed SCDs and want to unselect more, you can use
other items from the Advanced slicing menu (you just have to remember to unselect all SCDs
before, because this menu makes the selection). You can even unselect the last SCDs by hand,
using directly the SCDs toggle buttons (but do not try to MERGE SCDs at this point).
Once everything looks good, hit the ‘Continue’ button.
12.3.7 Choosing names
Once you have clicked on the ‘Continue’ button a new window will appear, asking you to give
the name of the SSCD you want. You can choose to enter a name, for example ‘ obs lw2’, or
to use the official name (in our example it is ’180014050000’ because the data comes from orbit
180, TDT sequence number 014, OSN 05 and CIA’s sequence number 0000). In any case, an
SCD name is made of 31 characters, for example an official name would look like
CSCD180014050002_96051517052200
and an unofficial user defined name would look like
CSCD_obs_lw2__02_96051517052200
The first four characters are always ‘CSCD’ (or ‘cscd’) for an SCD, ‘CSSC’ (or ‘cssc’) for
an SSCD. The next 10 may be user defined (12 next for an SSCD) or may follow the official
convention of: the sequence number (i.e. the position of the SCD within the SSCD), then an
underscore, then the creation date in the order year, month, day, hour, minutes, seconds and
centiseconds. User defined names that fall short of the full name length will be automatically
padded out with underscores.
Keep the following in mind when selecting a name:
• Do not forget to hit the return key after entering characters.
• If you press the ‘Official’ button, you will get the official name for your data.
• If you press ‘Cancel’ button, you will go back to the x handle slice window with your
previous choice.
When you are satisfied press the ‘Go’ button. x slicer will begin processing and a message
will appear when it has finished. You can then press the ‘Quit’ button of the x handle slice
window to exit x slicer, or continue to process the data remaining in your ERD.