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

202 CHAPTER 17. IMPORTING ISO DATA PRODUCTS TO CIA
17.1.2 SADs from AAR: aa2sad
To convert AAR data products to SADs in memory or on disk we use the procedure aa2sad.
Note that this routine is a command line version of the high-level widget program sad display
– see Section 10.2. Using the assigned variables of Section 17.1.1 an example call is:
CIA> aa2sad, tdtosn, ssad_origin, ssad_future, scd_dir=scd_dir, $
CIA> sad_dir=sad_dir, arc_dat=product_dir, ack=ack, /noscd
Two SSADs are created, one being the origin and the other the future SSAD (see Section
15.2.4). The keyword ack returns a logical value, 1 for a successful call and 0 for a failure.
Other useful optional keywords to aa2sad are nowrite and noscd. Setting nowrite will inhibit
writing of SADs to disk. Setting noscd, as in the example, inhibits the default creation of SCDs
along with the SADs.
17.1.3 SCDs from SPD: spdtoscd
To convert SPD data products to SPD SCDs in memory or on disk we use the procedure
spdtoscd. Using the assigned variables of Section 17.1.1, an example call is:
CIA> spdtoscd, ’cisp14300601.fits’, sscd, dir=product_dir, $
CIA> scd_dat=scd_dir, ack=ack
The output parameter sscd will contain the name of the created SSCD. Only one SSCD
exists for a single CISP file. The SSCD and its SCDs will be written to scd dir (permission to
write on this directory is required). The keyword ack returns a logical value, 1 for a successful
call and 0 for a failure. For more advanced users, the UTK start time and end time of required
SCD records can be passed as keywords to spdtoscd (see the on-line help or cia help).
In addition the keyword bs may be of interest to observers with beam-switch data. Beamswitch
observations have an intermediate step which occurs while slewing and data accrued
in this step may appear in an SCD. Normally this SCD is considered to contain invalid data.
Setting /bs will make spdtoscd merge this SCD with the previous SCD and users can later
manually unmask this ‘invalid’ data for inclusion in the finally MOSAIC image.
17.1.4 SCDs from ERD: erdtoscd
With the exception that erdtoscd creates ERD SCDs from ERD data products, everything in
the description of spdtoscd in Section 17.1.3 also applies here. An example call might be:
CIA> erdtoscd, ’cier14300601.fits’, sscd, dir=product_dir, $
CIA> scd_dat=scd_dir, ack=ack
17.1.5 CDSs from CAL-G files: calg2cds
To convert CDS data products from files on the CD-ROM to CDSs in memory or on disk we
use the function calg2cds 1 . Using the assigned variables of Section 17.1.1 an example call is:
1 Remember that since the CDSs in CIA are more recent then the distributed CAL-G files (Section 9.4.3) it is
unlikely that you will frequently use this routine.