NAME
focus.csh - sets the telescope focus position
SYNOPSIS
focus.csh
DESCRIPTION
focus.csh reads the temperature of the telescope
frame and calculates the best position of the telescope
focus by a linear fit using the constants FOCUSCOEF
and FOCUSNOMINAL taken from
ait.config.
If the secondary position is very near the desired
position, the secondary is not moved.
If the file focusnominal.dat is present
in the current data directory the value of
FOCUSNOMINAL is taken from it rather than
ait.config.
SEE ALSO
focusgrid