Computer Setup
This section details the setting up of the computer to interact with the network and telescope.
NOTE: The procedures in this chapter are for initial setup of the gemini system and will not have to be done by the observer.
Controlling the Telescope
Network Setup and FTP-ing Data
Controlling the Lick 3-m Telescope
Equipment:
The default setting is to have the gemini code interrogate POCO
for RA and DEC just before each FITS file is written to our hard
disk. If you do not want
auto-writing of coordinates to the FITS headers, just shut the feature
off in the gemini Engineering-TCS Setup menu.
Telescope moves are made by using the Setup-Telescope Move menu or by
typing TELMOVE XX YY at the command line, where XX and YY refer to RA
and DEC offset in arcseconds.
Occasionally, an error message is immediately returned from Telco
before the telescope is finished moving. In all cases where this
happened, the telescope went on to successfully execute the move. The
only caveat is that the user should not clear the error dialog box in
the gemini program until the telescope is finished moving (as indicated in
the telescope operators POCO GUI). Clearing the error message too soon
could result in the next command, e.g. a GO, in a script being
executed while the telescope is in motion.
Offset limits are +-115 degrees in RA and +-1 degree in DEC; these
limits are measured cumulatively from the last telescope slew,
i.e. you can't get around these limits by moving a bunch of
consecutive little offsets which add up to more than the
limits. Offset rates are about 60 arcsec/second at the equator in RA
and 30 arcsec/second in DEC.
Network setup and ftp-ing data
To start windows and FTP data please use the directions on the
Quick Reference page.
The current Gemini PC runs Windows95. Basic
network information for TCP/IP are listed below. The PC is
known as mhgemini.ucolick.org.
Procedure:
Interfacing with the telescope allows the Gemini software to give move
commands to (TELMOVE and TELPOSN) and receive limited error messages
from the telescope control program POCO. The user can interface with
these features by using the gemini menus or command line.
IP Address:128.114.176.40
Subnet Mask: 255.255.255.0
Default Gateway: 128.114.176.254
Last modified: Thu Mar 4 12:34:34 PST 2010
by Elinor Gates