XMM-Newton Science Analysis System
epexposure (epexposure-0.6.2) [xmmsas_20050815_1803-6.5.0]
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The first livetime factor is mode dependent and constant for each exposure. It
corresponds to the ratio of integration time to total time. The frame
read-out dead-time is calculated in epframes
already and appears
(implicitly) in the TIMEDEL entries in the EXPOSURE extension
which are smaller than the frame interval by a factor FC0.
This factor is also written by epframes
into the keyword AX_FC0.
XMM-Newton SOC/SSC -- 2005-08-16