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

12.2. AUTOMATIC DATA SLICING 83
2 LW OBS LW6 6.0 5.04 2 512 20 161.319 56.000
3 LW OBS LW6 6.0 5.04 2 512 20 161.356 56.016
etc...
Now we will store the name of each SSCD in appropriately named variables.
CIA> lw3_sscd = cleaned_sscds[0]
CIA> lw6_sscd = cleaned_sscds[1]
Now we can discard our original SPD SSCD and save our sliced SSCDs.
CIA> sscd_write, lw3_sscd, dir=scd_dir
CIA> sscd_write, lw6_sscd, dir=scd_dir
CIA> sscd_remove, spd_sscd, dir=scd_dir
(b) We begin by finding those SCDs we don’t want with scd find, and then deleting
them. We will choose to keep the LW6 CONFIGURATION. . .
CIA> unwanted_scds = scd_find( ’fltrwhl’, ’lw6’, /NOTFIND )
Searching for FLTRWHL=NOT(LW6)
Found 22 occurrences
CIA> scd_del, unwanted_scds
We must delete also SCDs containing calibration data or data accrued when CAM is
not in OP-MODE OBS.
CIA> unwanted_scds = scd_find( [’mode’], [’obs’], /NOTFIND )
Searching for MODE=NOT(OBS)
Found 3 occurrences
CIA> scd_del, unwanted_scds
To avoid confusion it is best at this stage to rename the IDL variable containing the
name of our modified SSCD:
CIA> lw6_sscd = spd_sscd
The SSCD in memory is automatically modified when some of its SCDs are deleted:
CIA> print, sscd_get( ’nscd’, lw6_sscd )
16
The final step is to save the modified SSCD that we have created. It is best to keep
this SSCD and the sliced SPD SCDs separate from the unsliced ones. Create a new
directory to hold the sliced data and for convenience create the following IDL string
variables to hold their names.
CIA> lw6_scd_dir = ’DKA200:[MDELANEY.14300601.scds.lw6]’