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Two types of table will be created to describe the contents of the
data received from ISAS:
Since a typical observation will span several orbits, and, since
observations may begin and end in the middle of an orbit, one of the
first tasks of the pipeline will be to identify which FRFs (and parts of
FRFs) correspond to a given observation. This information will be
taken from the original data files and put into the ``observation log"
which will be a database of available data with one entry per
pointing. The observation log will be cross-correlated against the
planned observation time-line and to identify the PIs and to
ascertain the completeness of the observations. A second, more
detailed table, the ``instrument mode log", will be generated for each
instrument. It will contain one record per change in the instrument
mode or satellite pointing.
- an observation log, and
- an instrument mode log.