AOT SWS01 makes full SWS grating wavelength scans at a reduced spectral
resolution . The scans are
effectively continuous, using small and frequent steps, much shorter
than the selected reset interval of the detector pre-amplifiers. The
integration in time translates into a smoothing of the spectrum, which
prevents aliasing problems due to insufficient sampling.
Four scanning rates are available, with total pure integration times of
approximately 13, 25, 50 or 100 minutes. Details on the four modes are
presented in Tab. 
. The AOT allows to trade off spectral
resolution 
against sensitivity and speed of observing. In principle, the
spectral resolution is reduced by a factor of 2 to 8, depending on the
selected mode . For the three
slower modes, a factor of 2 in spectral resolution is readily retrieved
by replacing in the data analysis each 2-second integration by a pair of
1-second integrations.