echelle

AVERAGE/TABLE frame table xy_col outcol [size]
Read pixels in a frame at positions defined by a table.
BACKGROUND/ECHELLE in out [radx,rady,step] [degree] [smooth] [method]
estimate interorder scattered light of an echelle spectrum
BACKGROUND/SMOOTH input output [radx,rady] [niter] [visu]
estimate interorder scattered light of an echelle spectrum
CALIBRATE/ECHELLE [defmtd] [wlcmtd]
performs order definition and wavelength calibration
CLEAN/ECHELLE
Clears contexts Echelle and Spec and removes process tables
CONVERT/ECHELLE input output domain function param option
resample echelle orders
DEFINE/ECHE [ordref] [width1,thres1,slope] [defmtd] [defpol]
define echelle order positions
DEFINE/HOUGH [ordref] [nbord] [hwid] [hough_par] [thresh] [degx,degy]
[hot_thres,step] [hough_setup]
define echelle order positions; automatic detection by Hough transform.
DEFINE/SKY ima [nsky] [possky] [half_width]
defines limits of the sky windows
DISPLAY/ECHELLE image [g_flag]
Optionally creates a display and graphic windows and scales an
image to be displayed.
ERROR/ECHELLE command keyword
Low-level error message generator for the echelle package
EXTR/ECH input output [params] [method]
extract echelle orders
EXTR/OPT input output slit,ord1,ord2 [ron,g,sigma] [table] [coeffs]
weigthed extraction of echelle orders
EXTRACT/ORDER inp out sl,ang,off meth table coeff [ord1,ord2]
Extract echelle orders and produces a frame in space pixel-order
EXTRACT/SKY in out [mode]
Extracts sky spectrum.
FILTER/ECHELLE input output
filter echelle frame for cosmic ray hits and subtract background
FLAT/ECHELLE [flat] [correct] [blaze]
subtract background from flat-field image and approximate blaze profile
HELP/ECHELLE keyword [mode]
Provides short help on an echelle session keyword
HOUGH/ECHELLE input [scan] [step,nbtr] [nbord] [flags] [hwid] [thres] [params]
perform Hough transform and orders detection on a flat-field frame
IDENT/ECHEL [wlc] [lincat] [dc] [tol] [wlcloop] [wlcmtd]
[guess,[shift]] [ccdbin]
perform wavelength calibration of echelle spectra
INIT/ECHELLE [name]
initializes echelle parameters
INITIAL/EMMI [ref] [grism]
Initializes the Echelle context for a given EMMI configuration
KEYDEL/ECHELLE [table]
Deletes echelle session keywords
LOAD/CALIBRATION
display wavelength calibration result
LOAD/ECHELLE
display echelle orders (and optionally background) positions
LOAD/IDENTIFICATION
display initial identifications.
LOAD/SEARCH
Loads on display the position of the lines found by the
SEARCH/ECHELLE command.
MERGE/ECHELLE inframe outframe [params] [method]
merge echelle orders
MERGE/OPTIMAL rebima weight out [delta]
Optimal weighted merging of echelle orders
OFFSET/ECHELLE [image] [range] [cover] [ordtab] [mode]
Determines the offset along the slit between the order
coefficients and a given echelle spectrum.
OVERLAP/ECHELLE rebima order
Plots the overlap region between adjacent orders n and n+1
PLOT/CALIBRATE [ord1,ord2]
plot dispersion relation in echelle reduction
PLOT/ECHELLE frame [ord1,ord2] [printer]
plot extracted echelle orders.
PLOT/IDENTIFICATION frame [ord1,ord2] [printer]
plot line identifications in echelle reduction
PLOT/RESIDUAL [ord1,ord2]
plot dispersion residuals in echelle reduction
PLOT/SPECTRUM in [start,end]
plots a rebinned spectrum in wavelength range
PREPARE/BACKGROUND [step] [init] [back_tab] [order_tab] [descr]
low-level command; create table back.tbl
PREPARE/WINDOW catalogue flat-bkg lhcuts
prepare echelle images for the command AVERAGE/WINDOW
REBIN/ECHELLE input output sample
rebin echelle orders into wavelength
REDUCE/ECHELLE input output [bkcor]
reduction of echelle spectra.
REGRESSION/ECHELLE [defpol] [niter] [absres] [kappa]
fit 2-dim. polynomial to order positions (defpol limited to 5,5)
REPEAT/ECHELLE [scalx,scaly] [response]
iterate on the response computation
RESPONSE/ECHELLE [std] [fluxtab] [response]
compute instrument response
RIPPLE/ECHELLE input output [params] [method] [option]
correct for the blaze function
ROTATE/ECHELLE cat,ima root-name [mode] [flip_axis] [angle] [o_time]
rotate (and optionally flip) echelle images
SAVE/ECHELLE name
saves current echelle session
SAVINIT/ECHELLE ima,tab mode
saves/reads echelle session keywords as descriptor of an image/table
SCAN/ECHELLE frame [scan-par]
update echelle keywords SCAN and IMSIZE.
SEARCH/ECHELLE frame [width2,thres2]
search for emission lines
SEARCH/ORDER [ordref] [w,t,s] [ordtab] [defmtd]
define echelle order positions
SELECT/BACKGROUND [all]
interactive unselection of background reference positions
SET/ECHELLE par=value [...]
set echelle keywords
SHOW/ECHELLE
show echelle session
SUBTRACT/BACKGROUND input bkg output [bkgmtd] [bkgvisu]
compute and subtract background from input frame.
TUTORIAL/ECHELLE
demonstrates main commands of echelle package
UPDATE/ECHELLE image
low-level command handling image geometry in world-coordinates
UPDATE/ORDER image [offset]
Updates order definition coefficients and background table.
VERIFY/ECHELLE file [type]
check consistency of frame size against predefined values.