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| -rw-r--r-- | doc/npol_tsr/source/npol.rst | 13 |
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diff --git a/doc/npol_tsr/source/npol.rst b/doc/npol_tsr/source/npol.rst index 80145ae..a6809cd 100644 --- a/doc/npol_tsr/source/npol.rst +++ b/doc/npol_tsr/source/npol.rst @@ -4,19 +4,6 @@ NPOL Reference File =================== -.. abstract:: - :author: Nadezhda Dencheva, Warren Hack - :date: 12 Oct 2010 - - The HST pipeline originally used two types of reference files to correct for distortion: - ``IDCTAB`` files which contain the coefficients for a polynomial correction and - ``DGEO`` files which are images with the residual distortion. A new format for the residual - distortion, called ``NPOL`` files (extension ``_npl.fits``), is presented in this document. - The conversion from ``DGEO`` files to ``NPOL`` files is described and an example of the format is given - using ACS/WFC F606W filter. Tests of the conversion procedure show that the - differences between the ``DGEO`` files and ``NPOL`` files are of the order of :math:`10^{-4}` - pixels. - Introduction ============ |