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% @(#)searchmos.hlq 1.3 (ESO-DMD) 2/14/94 16:36:52
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%++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
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%.COPYRIGHT (c) 1994 European Southern Observatory
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%.KEYWORDS MIDAS, help files, SEARCH/MOS
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%.PURPOSE On-line help file for the command: SEARCH/MOS
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%.VERSION 1.0 14-FEB-1994 : Creation, PB
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%----------------------------------------------------------------
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SEARCH/MOS 19-AUG-1993 OS
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SEARCH/MOS [wlc] [t,w] [ybin] [meth] [mostab] [lintab]
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Search for arc lines in MOS slitlets and center them
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SEARCH/MOS [wlc] [t,w] [ybin] [meth] [mostab] [lintab]
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wlc = wavelength calibration image. \\
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Session Keyword: WLC \\
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t,w = threshold, window \\.
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Session Keyword: SEAPAR \\
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ybin = Step, binning radius in y-direction.
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Session Keyword: YBIN \\
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meth = centering method (gaussian or gravity). \\
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Session Keyword: CENTMET \\
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Default value: gravity
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mostab = Input table \\
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Session Keyword: MOS \\
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lintab = Output table \\
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Session Keyword: LINPOS \\
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Takes the wavelength calibration frame and scans the CCD rows
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searching for arc lines with an intensity above the threshold
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t relative to local background determined in the
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search window w. It takes only every ybin(1)th row
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and averages as many CCD rows as given by ybin(2) before
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scanning. The search areas are the slitlets defined by
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mostab.tbl and the results are stored in lintab.tbl.
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SEARCH/MOS wlc2 100,10
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Takes the calibration frame wlc2.bdf and searches lines above
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a threshold of 100 within a search window of 10 pixels. Step
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and binning are defined by keyword YBIN, centering method by
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keyword CENTMET. The slitlet table is taken from keyword MOS
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and the result table from keyword LINPOS.
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SEARCH/MOS wlc 50,10 5,3 gauss
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Takes the calibration frame wlc.bdf and searches lines above
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a threshold of 50 within a search window of 10 pixels. It takes
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every 5th CCD row and averages 3 rows before scanning. The
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centering of the lines is done by fitting a Gaussian to their
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intensity distribution. The slitlet table is taken from keyword
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MOS and the result table from keyword LINPOS.