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ÿþ<html> <head> <meta http-equiv=Content-Type content="text/html; charset=unicode"> <meta name=Generator content="Microsoft Word 15 (filtered)"> <title>stitch</title> <style> <!-- /* Font Definitions */ @font-face {font-family:"Cambria Math"; panose-1:2 4 5 3 5 4 6 3 2 4;} /* Style Definitions */ p.MsoNormal, li.MsoNormal, div.MsoNormal {margin:0in; margin-bottom:.0001pt; font-size:12.0pt; font-family:"Times New Roman",serif;} h1 {mso-style-link:"Heading 1 Char"; margin-right:0in; margin-left:0in; font-size:24.0pt; font-family:"Times New Roman",serif; font-weight:bold;} h3 {mso-style-link:"Heading 3 Char"; margin-right:0in; margin-left:0in; font-size:13.5pt; font-family:"Times New Roman",serif; font-weight:bold;} a:link, span.MsoHyperlink {color:blue; text-decoration:underline;} a:visited, span.MsoHyperlinkFollowed {color:purple; text-decoration:underline;} p {margin-right:0in; margin-left:0in; font-size:12.0pt; font-family:"Times New Roman",serif;} code {font-family:"Courier New";} span.Heading1Char {mso-style-name:"Heading 1 Char"; mso-style-link:"Heading 1"; font-family:"Calibri Light",sans-serif; color:#2F5496;} span.Heading3Char {mso-style-name:"Heading 3 Char"; mso-style-link:"Heading 3"; font-family:"Calibri Light",sans-serif; color:#1F3763;} p.msonormal0, li.msonormal0, div.msonormal0 {mso-style-name:msonormal; margin-right:0in; margin-left:0in; font-size:12.0pt; font-family:"Times New Roman",serif;} .MsoChpDefault {font-size:10.0pt;} @page WordSection1 {size:8.5in 11.0in; margin:1.0in 1.0in 1.0in 1.0in;} div.WordSection1 {page:WordSection1;} --> </style> </head> <body lang=EN-US link=blue vlink=purple> <div class=WordSection1> <p><a href="../docs/Programs.html">Back to Programs</a></p> <h1>stitch</h1> <p><b>stitch</b> combines 2-amplifier or 4-amplifier LDSS3 data into single-chip format, simultaneously removing bias and making approximate corrections for differing amplifier gains. </p> <p class=MsoNormal>&nbsp;</p> <table class=MsoNormalTable border=0 cellpadding=0 width="100%" style='width:100.0%'> <tr> <td style='padding:.75pt .75pt .75pt .75pt'> <p class=MsoNormal>USAGE</p> </td> <td style='padding:.75pt .75pt .75pt .75pt'> <p class=MsoNormal><code><span style='font-size:10.0pt'>stitch <i>framename</i></span></code> </p> </td> </tr> <tr> <td style='padding:.75pt .75pt .75pt .75pt'> <p class=MsoNormal>INPUT</p> </td> <td style='padding:.75pt .75pt .75pt .75pt'> <p class=MsoNormal><code><span style='font-size:10.0pt'>framenamecn.fits</span></code> are the set of image files to be combined </p> </td> </tr> <tr> <td style='padding:.75pt .75pt .75pt .75pt'> <p class=MsoNormal>OUTPUT</p> </td> <td style='padding:.75pt .75pt .75pt .75pt'> <p class=MsoNormal><code><span style='font-size:10.0pt'>framename.fits</span></code> is the combined frame. </p> </td> </tr> <tr> <td valign=top style='padding:.75pt .75pt .75pt .75pt'> <p class=MsoNormal>PARAMETERS</p> </td> <td style='padding:.75pt .75pt .75pt .75pt'> <table class=MsoNormalTable border=0 cellpadding=0 width="100%" style='width:100.0%'> <tr> <td style='padding:.75pt .75pt .75pt .75pt'> <p class=MsoNormal><b>gain1</b></p> </td> <td style='padding:.75pt .75pt .75pt .75pt'> <p class=MsoNormal>relative gain (e-/adu) of amplifier 1 </p> </td> </tr> <tr> <td style='padding:.75pt .75pt .75pt .75pt'> <p class=MsoNormal><b>...</b></p> </td> <td style='padding:.75pt .75pt .75pt .75pt'> <p class=MsoNormal>... </p> </td> </tr> <tr> <td style='padding:.75pt .75pt .75pt .75pt'> <p class=MsoNormal><b>gain4</b></p> </td> <td style='padding:.75pt .75pt .75pt .75pt'> <p class=MsoNormal>relative gain (e-/adu) of amplifier 4 </p> </td> </tr> <tr> <td style='padding:.75pt .75pt .75pt .75pt'> <p class=MsoNormal><b>dewar</b></p> </td> <td style='padding:.75pt .75pt .75pt .75pt'> <p class=MsoNormal>the relevant CCD configuration: LDSS3-2, LDSS3C-2**,  or LDSS3-4 </p> </td> </tr> <tr> <td style='padding:.75pt .75pt .75pt .75pt'> <p class=MsoNormal><b>bias</b></p> </td> <td style='padding:.75pt .75pt .75pt .75pt'> <p class=MsoNormal>name of bias file to used, or &quot;none&quot; </p> </td> </tr> </table> </td> </tr> </table> <p class=MsoNormal>&nbsp;</p> <h3>Details:</h3> <p><b>stitch</b> makes bias and gain corrections in the same way as does <b>biasflat</b>. The COSMOS pipeline expects LDSS3 data to be in 1-amplifier, 1 FITS file form, so stitch must be used before any other processing of LDSS3 files is performed. </p> <p>**For newer 2-amplifier LDSS3-C data (taken April 2014 or later), you will need to set <b>dewar</b> to <b>LDSS3C-2</b>. </p> <p><i>Note, that the IRAF routine lstitch is NOT an acceptable alternative to stitch: lstitch using an inferior IRAF method of bias correction and does not combine data in the same orientation as does stitch. </i></p> <p class=MsoNormal>&nbsp;</p> <p><a href="../docs/Programs.html">Back to Programs</a> </p> </div> </body> </html>