ONOFF observations with WOBBLER SWITCHING are a special case, because the offsets for the subscans must be in system trueHorizon and their values must be selected according to the offsets of the WOBBLER SWITCHING! E. g.,
SWWOBBLER -33 +33 ONOFF 33 0 /REFERENCE -33 0 trueHorizon /SYSTEM trueHorizon
This can also be achieved simply by saying
SWWOBBLER -33 ONOFF
PAKO ``knows'' the special requirements for onoff wobbler switching, and will set the offset parameters for ONOFF accordingly, if SWWOBBLER has been previously selected. 7
In this special case, in order to map the source, the observer may
add offsets on the source and
using the command OFFSETS
with the system ``projection'', e.g.:
SWWOBBLER -33 OFFSETS 110 120 /SYSTEM projection ONOFF