We need to get rid of the ghost pupil image in the flat fields.
Running the master flat through 'mscpupil' with the "type = ratio" will
produce a pupil free flat. Running 'mscpupil' a second time on the same
initial flat but with the "type = data" will save a residual pupil image to
be subtracted from the object images using 'rmpupil'.
PACKAGE= mscred
TASK = mscpupil
input = masterU List of input images
output = MasterU.fits List of output images
(masks = BPM) List of masks
(type = ratio) Output type
(lmedian= no) Subtract line-by-line median?
(xc = 27.) Pattern center offset (pixels)
(yc = 9.) Pattern center offset (pixels)
(rin = 300.) Radius of inner background ring (pixels)
(drin = 20.) Width of inner background ring (pixels)
(rout = 1500.) Radius of outer background ring (pixels)
(drout = 20.) Width of outer background ring (pixels)
(funcin = chebyshev) Inner azimuthal background fitting function
(orderin= 2) Inner azimuthal background fitting order
(funcout= spline3) Outer azimuthal background fitting function
(orderou= 2) Outer azimuthal background fitting order
(rfuncti= spline3) Radial profile fitting function
(rorder = 40) Radial profile fitting order
(abin = 0.) Azimuthal bin (deg)
(astep = 0.) Azimuthal step (deg)
(niterat= 3) Number of rejection iterations
(lreject= 3.) Low rejection rms factor
(hreject= 3.) High rejection rms factor
(datamin= INDEF) Minimum good data value
(datamax= INDEF) Maximum good data value
(verbose= yes) Print information?
(fd = )
(mode = ql)
PACKAGE = mscred
TASK = mscpupil
input = masterU List of input images
output = Ufebpup.fits List of output images
(masks = BPM) List of masks
(type = data) Output type
(lmedian= no) Subtract line-by-line median?
(xc = 27.) Pattern center offset (pixels)
(yc = 9.) Pattern center offset (pixels)
(rin = 300.) Radius of inner background ring (pixels)
(drin = 20.) Width of inner background ring (pixels)
(rout = 1500.) Radius of outer background ring (pixels)
(drout = 20.) Width of outer background ring (pixels)
(funcin = chebyshev) Inner azimuthal background fitting function
(orderin= 2) Inner azimuthal background fitting order
(funcout= spline3) Outer azimuthal background fitting function
(orderou= 2) Outer azimuthal background fitting order
(rfuncti= spline3) Radial profile fitting function
(rorder = 40) Radial profile fitting order
(abin = 0.) Azimuthal bin (deg)
(astep = 0.) Azimuthal step (deg)
(niterat= 3) Number of rejection iterations
(lreject= 3.) Low rejection rms factor
(hreject= 3.) High rejection rms factor
(datamin= INDEF) Minimum good data value
(datamax= INDEF) Maximum good data value
(verbose= yes) Print information?
(fd = )
(mode = ql)