The times given below are approximate overheads associated with pointing to and acquiring a target. They include telescope slew times, pointing and focus adjustments, guidance acquisition and also initial instrument configuration times (as the instruments are configured while the the telescope is slewing).

• SALTICAM imaging/Frame Transfer/Slot mode: 600s
• RSS Imaging/Long slit/ Fabry-Perot mode: 600s
• RSS MOS mode: 900s

The following represent the range of measured RSS mechanical configuration overheads for individual moves. These values, and rough estimates for full configuration changes, are intended to enable PIs to estimate the amount of time their observations will take. 

The actual numbers depend on the specific setup of the instrument prior to the requested configuration.

* Mask change only: 35s - 85s, depending on actual slitmask locations in the magazine.

* Filter change only: 15s-75s, depending on actual filter locations in the magazine.

* Grating rotation only: 40-70s

* articulation rotation only: 30-72s.

* Etalons cannot be changed during the night.

* Maximum possible change between two spectroscopic configurations, including mask, filter, grating and grating angle change (not necessarily realistic): 244s.

* Configuring RSS from fresh start (all mechanisms homed) to highest articulation setting: ~90s

* Configuring RSS from highest resolution setting to lowest resolution setting: about 2 mins.

• Filter change only: 8-14s depending on filter position required.
• Dither move: approximately 30s