iraf.net

Hello,
I am havingtrouble combining my bias exposures using zerocombine/ccdproc within the mscredpackage. I am using IRAF v2.12.2a and the latest version of mscred (I think).The data was taken on the kpno 0.9-m with the mosaic imager. I am getting the following error following completion of the xtalk correction:zerocombine
List of zero level images to combine (@zeros.dat):
jan01_z/zero001.fits[im1]: 20-Mar-2006 13:04:10 Crosstalk is im2 * 0.0015
jan01_z/zero001.fits[im2]: 20-Mar-2006 13:04:15 No crosstalk correction
jan01_z/zero001.fits[im3]: 20-Mar-2006 13:04:17 Crosstalk is im4 * 0.00298
jan01_z/zero001.fits[im4]: 20-Mar-2006 13:04:22 No crosstalk correction
jan01_z/zero001.fits[im5]: 20-Mar-2006 13:04:26 No crosstalk correction
jan01_z/zero001.fits[im6]: 20-Mar-2006 13:04:29 Crosstalk is im5 * 0.00185
jan01_z/zero001.fits[im7]: 20-Mar-2006 13:04:37 No crosstalk correction
jan01_z/zero001.fits[im8]: 20-Mar-2006 13:04:43 Crosstalk is im7 * 9.50E-4
ERROR: parameter `bpmasks' not found
ccdproc (images=@zeros.dat, output=, ccdtype=zero, noproc=no)
zerocombine ()I have assigned the default BPM located in mscdb$noao/mosaic1/My ccdproc parameters look as follows:PACKAGE = mscred
TASK = ccdprocimages = @zeros.dat List of Mosaic CCD images to process
(output = ) List of output processed images
(ccdtype= ) CCD image type to process
(noproc = no) List processing steps only?(xtalkco= yes) Apply crosstalk correction?
(oversca= yes) Apply overscan strip correction?
(trim = yes) Trim the image?
(fixpix = no) Apply bad pixel mask correction?
(zerocor= no) Apply zero level correction?
(darkcor= no) Apply dark count correction?
(flatcor= no) Apply flat field correction?
(sflatco= no) Apply sky flat field correction?
(merge = no) Merge amplifiers from same CCD?(xtalkfi= xtalkcoeff_final.dat) Crosstalk file
(biassec= !biassec) Overscan strip image section
(trimsec= !trimsec) Trim data section
(fixfile= BPM) List of bad pixel masks
(zero = Zero) List of zero level calibration images
(dark = Dark) List of dark count calibration images
(flat = Flat*) List of flat field images
(sflat = Sflat*) List of secondary flat field images
(minrepl= 1.) Minimum flat field value(interac= no) Fit overscan interactively?
(functio= legendre) Fitting function
(order = 1) Number of polynomial terms or spline pieces
(sample = *) Sample points to fit
(naverag= 1) Number of sample points to combine
(niterat= 1) Number of rejection iterations
(low_rej= 3.) Low sigma rejection factor
(high_re= 3.) High sigma rejection factor
(grow = 0.) Rejection growing radius
(fd = )
(fd2 = )
(mode = ql)The process quits after creating two tmp*.fits files in my working directory.
If you have any ideas as to what might be causing this problem, I would greatly
appreciate it. Thanks.
Joseph Gallagher

Hi Joseph, Try doing an "unlearn ccdproc", chances are you're getting the old task parameters from your uparm directory and need to reinitialize. You can also reinitialize your entire uparm directory with a new MKIRAF.Cheers,
-Mike

Hey Mike,
Sorry to bother you again. I executed the task after unlearning ccdproc, and obtained the same error message. I then went ahead and initialized my uparm directory as you suggested and once again obtained the same error. Where exactly is the "bpmasks" parameter defined? Thanks for the help.
-Joe Gallagher

For MSCRED.CCDPROC it is mscred$src/ccdproc.cl, for the NOAO.IMRED.CCDRED.CCDPROC it is ccdred$ccdproc.par (which has a 'max_cache' param your listing doesn't mention so I'm assuming you're listing the mscred version). The ZEROCOMBINE task is a script wrapper calling the tasks.If you get the error from an initialized uparm then there may have been an error in your IRAF or MSCRED install, e.g. the binaries were updated but the source tree wasn't. The 'bpmasks' param was added for MSCRED V4.3 (Feb01). Double-check your mscred version and update to the latest if you don't see the parameter list in the source.-Mike