
Winer Observatory building near Sonoita, Arizona at an elevation of 5000
ft. The observatory has a large roll-off roof and contains a number of
large robotic telescopes. It is in this observatory that the Astronomical
League has placed their remote International Space Station - Amateur Telescope
(ISS-AT) project. Volunteers from Vanderbilt University's Dyer Observatory in Tennessee
will control the mount remotely by computer |

After removing the previous mounting, Walter Piorkowski of Astro-Physics
is drilling and tapping holes in the pier to install the 1200GTO
mount base plate.
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The mount and scope are installed on the pier, ready for initial testing and cable placement. Note that the clutch knobs
on the west side of the mount have been removed and replaced with set screws that lie flush with the surface of the mount.
This allowed the Dec cable to slide easily over the axis in all orientations and
there was no snagging of the wire anywhere.
This photo shows the initial arrangement of the cables. Please see the
photos below that show the final placement.
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ISS-AT committee members Rocky Alvey, Orville Brettman, and Lance
Martin check out the placement of the cables on the 1200GTO mount.
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Checking out the system in all orientations to make sure that none
of the cabling
interferes with any of the mounting parts.
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Walter using
CCDSoft to test the imaging setup.
It was interesting that during the T-Point run, Orville
Brettmann discovered that the control functions in Software Bisque's TheSky software for our
GTO mounts were not adequate to center the stars for a really accurate data
set. Walter installed a copy of DigitalSky Voice and they were able to use the more
advanced centering controls in that program to do the job quickly and
accurately. Since Roland has not used T-Point extensively yet with TheSky, he's
going to have to figure out the best way to use these programs. Having the
keypad nearby for centering has been his preferred method until now, but this
was not an option for their remote setup. We are now thinking of creating
some neat new software for the computer for those situations where a keypad
is not available. Stay tuned.
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Close up of the equipment attached to the Celestron C-14, including
the SBIG ST-9E camera with Color Filter Wheel, telecompressor, Optec
TCF motorized focuser and a Kendrick Dew Remover.
All cabling was securely attached to the mounting plate before looping
down to the pier. Attaching the wires securely to the plate prevents any kind of motion
or disturbances to the camera during image aquisition and guiding. The loop
is made long enough to allow the scope to reach all portions of the sky with
plenty to spare. The guys ran the scope all over and reported zero
interference.
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Finished mount
ready for a night of imaging under remote control.
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Computer
screen showing setup for T-Point runs. Stars were chosen from
Software Bisque's TheSky planetarium software. The images were
grabbed and displayed under a clear acetate overlay, which had
a cross hair drawn on it. The stars were then precisely centered
using DigitalSky Voice software (using the mouse to activate on-screen
N-S-E-W buttons) and added to the mapping data. Walter had used
only the polar scope to initially align the 1200GTO. No further
polar alignment was done to the mount. After several mapping
runs with T-Point, they were able to achieve 7.1 arc second pointing
accuracy over the whole sky. Target objects all over the sky landed smack
dead-center on the chip every time.
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Walter "painted"
the telescope with his red LED flashlight as it was operating
under the
Arizona night sky. A beautiful ending to a job well done.
The ultimate goal of the ISS-AT project
is to place an amateur telescope in space on the International Space Station, where amateurs will operate
it to gather images for various astronomy projects. The goal of this phase is to develop the communication
network to operate a telescope from 2000 miles away. This is the second year of operation. You can find out
more information about this project at this website www.issat.org.
In the near future, the website will be updated with information regarding this new installation. We are proud to be a partner. |
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This page was last modified:
January 10, 2005