Ginga Specific Software: Program HELIO
Program helio accesses the satellite position and pointing
data from the original time series (i.e. sortac must have been run with the
parameter AUX_INFO=YES) to calculate the time delay to the
heliocentric frame of reference, which is stored as the DOUBLE
PRECISION array TIME_CORR corresponding to each element of
the original time series. This array is written back to the original
file. Although this method of applying time corrections generates
rather large time series files it has the advantage that further
computation of time delays is not required.
Another feature of helio is that one time series channel can
be tested to ensure that no spikes are present in the resultant time
series. Discriminator window edges are set using HEL_CRMIN and
HEL_CRMAX (see below).
A Ginga data CUBE or TIME series.
Helio requires five input parameters. The QX parameter
system is used to read these parameters.
| HEL_DATIN |
The name of the input data cube or time series. |
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| HEL_IPHA |
Pulse height channel of the time series to be tested. |
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| HEL_IDENT |
Ident channel of the time series to be tested. |
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| HEL_CRMIN |
Low edge of window. |
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| HEL_CRMAX |
High edge of window. |
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