An interferometric focussing mode working on the same principle as the
interferometric pointing mode is available using the OBS
FOCUS command. Data are stored in the Date.IPB file,
and a quasi real-time reduction is available within CLIC using the
CLIC
SOLVE FOCUS command. CLIC command CLIC
SOLVE FOCUS /PRINT produces a command procedure
named focus.obs which can be used in OBS to enter the
appropriate corrections.