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Name

ccdpeakstats - spectral peak statistics of an image

Synopsis

ccdpeakstats [parameter=value]

Description

ccdpeakstats looks at all spectra through a cube and for signals above a clip level determined by sigma= and nsigma= it will compute the peak signal, mean channel and channel width within a segment that is deemed to be "single" line (as determined by minchan= and maxgap=).

Parameters

The following parameters are recognized in any order if the keyword is also given:
in=
Input image filename [???]
sigma=
Noise level [???]
nsigma=
Number of sigma over which line segments are detected. The cutoff is determined by sigma*nsigma. Default: 5
minchan=
Min number of channels over cutoff to count. Default: 5
maxgap=
Max number of channels below cutoff allowed in. Default: 2
x=
Pick an X pixel (0....) for debug one spectrum []
y=
Pick an Y pixel (0....) for debug one spectrum []
tab=
If given, print out data values []

Examples


% ccdpeakstats sample.ccd
#  peak   <channel> FWHM    #channels
0.0232928 562.954   1.95056 7
0.0463414 856.056   3.31661 13

See Also

ccdstat(1NEMO)

Files

Author

Peter Teuben

Update History


2-nov-15    V0.1 Created    PJT


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