Leuschner Thirty Inch Telescope

The Leuschner Thirty Inch Telescope

The thirty inch diameter telescope was manufactured by Tinsley Laboratories around 1968. Tinsley also made the correcting optics for the flawed primary mirror of the Hubble Space Telescope.

Limits of telescope motion

Limits	Switches	Software
East	HA <-50°	HA=-50°=-3:28
West	HA >+50°	HA=+50°=+3:28
North	Dec=+63°	Dec=+60°
South	Dec=-10°	Dec=-7°

To avoid hitting a limit switch, be aware of the following:

Don't point the telescope close to a limit.
Turn tracking off when you are close to a limit or are not taking images. Tracking ignores software limits.
The offset command ignores the software limits listed above.

Pointing Corrections (degrees)	ircam	seti	apogee
tx zero	cra=-0.170 cdec=0.910 (Sept, 21 2006)	cra=-0.185 cdec=0.948 (Oct 1, 2006)

Flip Mirror (degrees)	face down	home	ircam	seti	apogee
tx flip	put=102	put=0	put=12	put=237	put=328

Secondary Mirror Focus (mils)	home	ircam	seti	apogee	max
tx move_sec	mils=0	mils=597 (Sep 20, 2006)	mils=624 (Oct 1, 2006)	mils=	mils=1360

Secondary mirror technical details here

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