Reference Files =============== The ``refpix`` step uses a REFPIX reference file when processing NIRSpec exposures that have been acquired using an IRS2 readout pattern. For other full-frame NIR instruments and modes, when the optional SIRS algorithm is selected, the ``refpix`` step uses a SIRSKERNEL reference file. .. include:: ../references_general/refpix_reffile.inc .. include:: ../references_general/sirskernel_reffile.inc