Status: offline
Registered: 09/10/2015
Posts: 4
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I'm currently attempting to use the IRAF task dohydra in order to reduce SparsePak data. The task is able to get past the flat field fitting, but encounters an error. I believe this occurs when arcrefs gives a faulty extension. The task looks for a .iraf.ms file, which I am unfamiliar with and epar arcrefs reveals a blank input, so it must be coming from another input. Does anyone have previous experience with this error? The error report below gives the parameters of arcrefs. The parameters I use for dohydra is below the error report.
Create response function FullFlatsparsepak.iraf.ms
Extract flat field FullFlat
Fit and ratio flat field FullFlat
Create the normalized response FullFlatsparsepak.iraf.ms
Extract arc reference image a106
Determine dispersion solution for a106
ERROR: Cannot open file (database/ida106sparsepak.iraf.ms)
"plotfile=plotfile, logfiles=logfile, verbose=yes)"
line 179: srcfibers$arcrefs.cl (hidden task)
called as: `arcrefs (arcref1=a106, arcref2=, extn=sparsepak.iraf.ms, arcreplace=, apidtable=sparsepak.iraf, response=FullFlatsparsepak.iraf.ms, crval=INDEF, cdelt=INDEF, done=tmp$iraf1184wa, log1=logfile, log2=dev$null)'
"crval, cdelt, done, log1, log2)"
line 393: srcfibers$proc.cl (hidden task)
called as: `proc (objects=@targetlist, apref=FullFlat, flat=FullFlat, throughput=, arcs1=a106.fits, arcs2=, arcreplace=, arctable=, fibers=82, apidtable=sparsepak.iraf, crval=INDEF, cdelt=INDEF, objaps=, skyaps=, arcaps=, objbeams=0,1, skybeams=0, arcbeams=, scattered=no, fitflat=yes, recenter=no, edit=no, trace=no, arcap=no, clean=no, dispcor=yes, savearcs=no, skyalign=no, skysubtract=no, skyedit=yes, saveskys=no, splot=yes, redo=yes, update=yes, batch=no, listonly=no)'
"skyedit, saveskys, splot, redo, update, batch, listonly)"
line 69: hydra$dohydra.cl
called as: `dohydra (mode=h)'
PACKAGE = hydra
TASK = dohydra
objects = @targetlist List of object spectra
(apref = FullFlat.fits) Aperture reference spectrum
(flat = FullFlat.fits) Flat field spectrum
(through= ) Throughput file or image (optional)
(arcs1 = a106.fits) List of arc spectra
(arcs2 = ) List of shift arc spectra
(arcrepl= ) Special aperture replacements
(arctabl= ) Arc assignment table (optional)
(readnoi= 3.40) Read out noise sigma (photons)
(gain = 0.219) Photon gain (photons/data number)
(datamax= INDEF) Max data value / cosmic ray threshold
(fibers = 82) Number of fibers
(width = 5.) Width of profiles (pixels)
(minsep = 5.) Minimum separation between fibers (pixels)
(maxsep = 10.) Maximum separation between fibers (pixels)
(apidtab= sparsepak.iraf) Aperture identifications
(crval = INDEF) Approximate central wavelength
(cdelt = INDEF) Approximate dispersion
(objaps = ) Object apertures
(skyaps = ) Sky apertures
(arcaps = ) Arc apertures
(objbeam= 0,1) Object beam numbers
(skybeam= 0) Sky beam numbers
(arcbeam= ) Arc beam numbers
(scatter= no) Subtract scattered light?
(fitflat= yes) Fit and ratio flat field spectrum?
(clean = no) Detect and replace bad pixels?
(dispcor= yes) Dispersion correct spectra?
(savearc= no) Save simultaneous arc apertures?
(skyalig= no) Align sky lines?
(skysubt= no) Subtract sky?
(skyedit= yes) Edit the sky spectra?
(savesky= no) Save sky spectra?
(splot = yes) Plot the final spectrum?
(redo = yes) Redo operations if previously done?
(update = yes) Update spectra if cal data changes?
(batch = no) Extract objects in batch?
(listonl= no) List steps but don't process?
(params = ) Algorithm parameters
(mode = ql)
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