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= The {{{ippToPsps}}} scratch database =

== Overview ==

All instances of {{{loader.py}}} need use of a local 'scratch' database in which to import FITS tables, manipulate then export.

== Stored procedure for psf likelihoods ==

It is necessary, hopefully temporarily, that {{{ippToPsps}}} calculates psf, extended and cosmic ray likelihoods for each detection. Fot this it has been necessary to implement a stored procedure within each scratch database in order to perform the calculations. This procedure is installed by a methos on the ScratchDb class, [browser:trunk/ippToPsps/jython/scratchdb.py here].