Quick Reduction of ESI Data Using ESIRedux
As part of the ESIRedux package, there is a routine designed to
quickly reduce echellette data using archived calibrations. A
fully reduced
1D spectrum is produced in ~8 min of time on the
Keck machines. Assuming all of the paths have been properly setup
on the esi account
(specifically IDL_PATH, XIDL_DIR, IDLUTILS_DIR, IDLSPEC2D_DIR, ESI_CALIBS),
one takes the following steps:
- Choose a machine with ~1G of RAM
- Set these paths
- prompt> setenv IDL_DIR /sol/apps/idl_54/idl
- prompt> setenv IDL_PATH +$IDL_DIR\/lib:+$IDL_DIR\/examples:+/sol/apps2/kroot/instr/esiredux/idl/:+pro
- Launch IDL 5.4
- prompt> /sol/apps/idl_54/idl/bin/idlde -32
- You may turn the change directory option off (under preferences)
- Run esi_echqckrdx:
esi_echqckrdx, 'filename'
Options:
- /CHK will give some graphical output along the way
- ARCFIL= will specify the arc
- FLATFIL= will specify the flat
- REFORDR= will choose the order to find the object in
- REFWV= (2 element array specifying wavelength range to identify
- SCICLM= Offset of Object from Slit center. If the program
stops in esi_echfndobj, the chances are your object is more than 20 pixels
away from the defined slit center. Try rerunning with SCICLM=20
the object in)
Test:
- Test the code by grabbing