This file is ./makee/0.makee.help .

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See 0.makee.flow to see the input/output flow for makee.

Execute "makee" with no parameters to see the command syntax.

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Running "makee" (MAuna Kea Echelle Extractor):

Input:

The required command line inputs to "makee" include the object FITS
file, bright star FITS file (used only to define a trace), and the flat field
(quartz lamp) FITS file.  "makee" also takes an optional arc-lamp FITS file
to determine the wavelength scale.  (The wavelength scale will be fitted
automatically using a database of previously calibrated arc-lamp spectra.)
Other optional parameters include: "mode=n" to specify one of four different
extraction modes.

Output:

The program will produce a PostScript plot of the trace fits and the data
points used (minus a straight line connecting the end points) called:
"tracefits_(obs#).ps".  The PostScript file "profiles_(obs#).ps" will show
you the spatial profile of each order and the initial guess at the object
range and background ranges as well as a plot of object widths and centroid
offsets.

The FITS files Flux-(obs#).fits, Sky-(obs#).fits, and Err-(obs#).fits
contain the final spectra (Data, Sky, and Error) for each order.  The
files are images where the number of rows equals the number of orders.
The bluest order is the first row.  You can look at the spectra using the 
program "spim0".  

The file s2n-(obs#).fits is the signal-to-noise (Flux)/(Err).  The file
DN-(obs#).fits gives the object spectrum in digital number.  This file is for
reference only, it is not recommended for analysis since it contains flat
field features.  Also for reference is the file Flat-(obs#).fits which is a
non-normalized spectrum of the flat field image.  See 0.example for an
example of a S/N check using the DN-(obs#).fits file.

With the option "lpr=" you can output files sent directory to your printer.

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Program parameters:

The program is divided into two parts: "EE" which finds the orders and the
object ranges and "PSE" (Psf Spectral Extraction) which corrects for CRs and
optimally extracts the spectrum for each order.  There are a number of
parameters which can be altered for each part.  The file "keck.parm" includes
parameters which determine the fraction of flux in the object to include when
determining the object ranges as well as values which adjust the width of the
order.  In the file "pse.inc" there are parameters which control the
rejection thresholds, the minimum amount of sky to use on either side of the
object, and the polynomial orders to use in various fits.  "keck.parm" may
be changed at run-time, but changes to pse.inc would require recompiling
the programs.

If you wish to change any of these parameters (e.g. if there is a serious
problem with the extractions), make a copy of the keck.parm file
into your directory.  Edit this copy and use the "pf=file" option in makee.