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Input data observed with the same configuration of the instrument and
the parameters needed for the reduction define a session. Session
parameters are listed by the command SHOW/ECHELLE. It is
recommended to use this command to control the actual status before
executing any further reduction step. Current parameters are saved
with the command SAVE/ECHELLE name, where name is the
session name. This command will be used whenever you want to interrupt
a session which then can be restarted at any other time. Current
parameter values are set to the default value with the command INIT/ECHELLE, or set to the values of a previously saved session with
INIT/ECHELLE name.
Relevant session parameters can be defined for each command in the
usual way:
command/qualifier parameters
or can be defined in explicit form as
SET/ECHELLE param=value [param=value ...]
where param is the parameter name and value is the
assigned value. The assigned values will be maintained until you save
them for later reference. Current parameter values are re-assigned
either by INIT/ECHELLE or by another SET/ECHELLE command.
Please note that the session concept is part of the high level command
structure (level 1 and above). If level 0 commands are used one has to
specify explicitely ALL the parameters required by the level 0
commands, despite the fact that some of them may already have been set
via SET/ECHELLE.
Next: Image Formats
Up: Implementation
Previous: Implementation
Petra Nass
1999-06-15