XMM-Newton Science Analysis System
tabgtigen (tabgtigen-2.12.3) [xmmsas_20070308_1802-6.6.0]
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The task needs to access the time tags of the HK parameters in the
input file in order to compute GTI boundaries.
The latter need to be single real numbers in the same time frame as used
for the event lists, i.e., basically number of seconds since the
fixed mission reference time. Time tags in HK files in the ODF, however,
are 'Earth-received-time' stamps in a string representation, and therefore,
needs to convert this into the events time frame.
This requires access to the ODF S/C time correlation file.
This requirement clearly makes the tasks dependent on the presence of
the ODF the processed HK parameter data stem from.
XMM-Newton SOC/SSC -- 2007-03-08