Date: Tue, 29 May 2001 17:09:01 -0600
From: Dan Long
Subject: RE: 2.5m obslog 20010527 (MJD 52057)
Pete,
    We have different elevation values allowed, depending on azimuth.
In PR 2386  I have requested a change such that when azimuth is at
stow, that we allow the altitude to go down to 5.8 degrees with the
flat field screens open.  The current altitude limit would apply for
all other azimuth values.
				Cheers,
				  Dan
>Dan:
>
> > Why is the altitude for this interlock 20 degrees?  The telescope can
> > go all the way down to 6 degrees without the bottom flatfield screen
> > hitting the floor ( it has about 3 inches to spare ).  If we change
> > the interlocks to something just shy of 6 degrees, we should be able
> > to do our normal operations without ever having altitude trips due to
> > a petal not being closed.  See PR 2.5m-telescope/2386.
>
>I think this is to miss the rails, not the floor.
>
>--Pete