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

216 CHAPTER 19. ADVANCED SLICING
Figure 19.1: Spectrum from an up and down LW CVF scan. The overlap between LW CVF
segments at 9.5 µm can clearly be seen.
CIA> sscd_concatene, cleaned_sscds[0], cleaned_sscds[1]
CIA> sscd_concatene, cleaned_sscds[0], cleaned_sscds[2]
CIA> sscd_concatene, cleaned_sscds[0], cleaned_sscds[3]
A CVF PDS containing all the data from the up and down LW CVF scan can be created
from this single big SSCD.
CIA> cvf_pds = get_sscdcvf( cleaned_sscds[0] )
After calibration a spectrum from an up and down CVF scan should look something like
that in Figure 19.1.
Note that the same procedure can be applied to an up and down SW CVF scan. The
difference is that there will only be 2 SSCDs to concatenate since there is only one SW CVF
segment.
19.5.2 Mixed LW and SW CVF observation
The example in this section is from a CVF observation that is comprised of a mixture of LW
and SW data. This is what the output SSCD of spdtoscd looks like:
CIA> sscd_info, sscd
140 SCDs in the SSCD: CSSC849007010101_98092714013700
seq channel mode fltrwhl pfov tint gain offset size ra dec
0 LW IDLE LW-CVF2 1.5 25.20 1 512 1 999999.99 +999999.99
1 LW IDLE LW-CVF2 1.5 2.10 1 512 1 999999.99 +999999.99
2 LW IDLE LW-CVF2 1.5 2.10 2 512 4 174615.21 -285011.96
3 LW OBS LW-CVF2 1.5 2.10 2 512 2 174615.22 -285012.12
4 LW OBS LW-CVF2 1.5 2.10 2 512 1 999999.99 +999999.99
5 LW OBS LW-CVF1 1.5 2.10 2 512 117 174615.22 -285012.00
6 LW OBS LW-CVF1 1.5 2.10 2 512 15 174615.22 -285012.00