At shorter wavelength it is desireable, that also the radial
focus
(FC1) could be optimized by the
user,
like it can be done with the axial focus (FC2)
using the OBSe-Procedure FOCUS.
For the radial focus (FC1)
we introduced
a new OBSe-Procedure
RFOCUS
<c_mode>
/DEFAULT
/LENGTH_FC <mm>
/TIME_FC <sec> /STEP_FC <number>
with the same input parameters like FOCUS. Using this
procedure one
can update the current value of SFC1 by the fit comming out of the
observation.
This is done by the verb CORRECTIONS in the same way
like for SFC2 only
attaching the adverb /RFOC.
For example:
CORRECTIONS * *
F
/RFOC updating SFC1 with the fit
values
CORRECTIONS
* * -5
/RFOC setting SFC1 to the value of -5
mm
Without the adverb /RFOC the
axial focus values
(SFC2) are updated or set.
For more information see the 
OBSe -
Addendum.
