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

Appendix A
Glossary
AA Auto-Analysis. As the name implies this is an automatic analysis of the telemetry data to
produce AAR.
AAR (level) Auto-Analysis Results. AAR level refers to the AA processing level that produces
AAR. In the CIA User’s Manual, generally used to refer to the data products CCIM,
CMAP, CMOS.
ADU Analogue to Digital Units.
AOT Astronomical Observation Template. In the ISOCAM Observer’s Manual an AOT is
defined as: ‘Representation of an observing mode in the proposal generation software
(PGA).’ In the CIA User’s Manual an AOT refers to a period of observing during which
only one AOT type is employed (i.e one of either AOT#1, AOT#3, AOT#4, AOT#5).
In this sense AOT and observing mode are synonymous (see glossary entries for observing
mode). Note the following characteristics of the AOT:
• An AOT can be identified by its number.
• One set of data products exists for each AOT.
• An AOT corresponds to a set of CONFIGURATIONS which in turn contains several
OP-MODEs comprised of one or more STATEs.
AOT#0 This AOT is reserved for CUS use.
AOT#1 An AOT type where a raster, micro-scan, staring, tracking observation may be performed.
AOT#2 Not currently used.
AOT#3 An AOT type where a beam-switch observation is performed.
AOT#4 An AOT type where a CVF observation is performed.
AOT#5 An AOT type where a polarization observation is performed. Most polarization observations
were performed by the CUS as AOT#99 observations.
AOT#99 CUS observations (mainly for calibration purposes).
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