See the official sequencer script page for more helpfull information about the sequencer and scripting.
You may use the OB
generator to produce fully automatic scripts, also in visitor mode.
NB! Since April 2012 the Calcite mounting is in its default orientation, i.e.
the two components are split horizontally on the CCD. An intermediate solution of rotating the
Calcite to reduce overheads was at work from Nov 2008 until Apr 2012. With the new controller from
June 2011, there is no need to produce horizontal spectra to save readout time. See the
polarimetry instrument setup page for details.
Preparing Observations and Data Reduction