Guider Tests

Here are some guider tests.

To run the scripts:

Open a terminal with X-Windows
Open a second terminal and run show tserver
cd ~treffers/Analysis/Guider  (as these scripts are not on the PATH)
Open the dome slit and mirror cover 
Have the telescope reasonably focussed
Type the command name (all lower case)
Data will be put in ~treffers/Data/Guider

If things foul up Cntrl^C should stop it. Also the scripts may have a command line option nopoint that does not point the telescope (use this for day test).

Most of the scripts do the following:

Select a bright star near the meridian and dec=25
Point the telescope
Take a science image
Display the image
Ask you to click on the bright star  (see the center script)

findcenter

This script will find the boresight between the guider and the center of the science CCD. The script first does the following:

Does slit keepopens
Starts tracking
Points to a magnitude 8 star near the meridian at dec ~25 degrees
Moves stage out of the way
Uses R filter
Takes a short picture with science chip
Displays it
Asks you to move the mouse to the bright star and click with left button
Moves telescope to center it
Takes another picture with science chip
Displays it

It then does the following:

Moves the stage to a spot near the center
Takes a guider image
Displays it
Then moves around and takes five more guider images and displays them.
When done prints out a message that it is finished

allstar

This script takes guider images of all the available guide stars bright than 13th magnitude in range of the guider. It even takes one that might block the science camera (to check blocking)

It finds a bright star near the meridian and finds the number of guide stars
It asks if the number is sufficient (hopefully above 10)
It then points the telscope to bright star
Takes and displays an image with the science camera
Asks you to center the bright star
Then moves the stage and takes both science and guider images

guidedip

This script takes a bunch of images of a guide star at different Z positions to find the best focus.

Points to a bright star near the meridian
Takes and displays a science chip image
Asks you to center it
Moves the stage to the center position
Takes and displays a bunch (16) guider images at different Z position

This experiment should be repeated off axis when the acquisition is better.

Instructions index