Target was set to be -0.1º RA from current telescope position and Python SlewToTarget was tested.
Telescope moved the right amount and stopped, both telescope and Python alerted when ready.
A second test was made with +0.5º RA. Also successfully.

The next step was to test the focuser and the camera.
First, while still on continuous mode of the camera, the Python-Focuser connection was tested.
Python can read the position and move the focuser. Units are steps. 1 step = 20µm

</>

<--/twistyPlugin-->

<--/twistyPlugin-->

script script

<--/twistyPlugin twikiMakeVisibleInline-->

output. output.

<--/twistyPlugin twikiMakeVisibleInline-->

Image: 0  psf: 100
-2000
Image: 1  psf: 5.52986378126
-2000
Image: 2  psf: 4.7682139585
-2000
Image: 3  psf: 4.63297472825
-2000
Image: 4  psf: 4.53466837512
-2000
Image: 5  psf: 4.42683230931
-2000
Image: 6  psf: 3.50235534344
-2000
Image: 7  psf: 3.18247227685
-2000
Image: 8  psf: 2.31374459737
1000.0
Image: 9  psf: 2.59153415468
1000.0
Image: 10  psf: 1.1543044854
-500.0
Image: 11  psf: 4.32859550035
-125.0
Image: 12  psf: 4.57442264323
-32.0

<--/twistyPlugin-->

Target was set to be -0.1º RA from current telescope position and Python SlewToTarget was tested.
Telescope moved the right amount and stopped, both telescope and Python alerted when ready.
A second test was made with +0.5º RA. Also successfully.

Still with small (-0.1º RA/DEC and +0.5º RA) movements, Python SlewToCoordinates was tested successfully.

With the tests done, the telescope was moved to Vega via controled movements on Stellarium
Vega was inside the Camera Range, demonstrating that the Park Method works.
Vega was recentered (-0.01 on RA) and the telescope was manually synced.
During this test, movements as small as 0.003º on RA proved to have no effect whatsoever.

The next step was to test the focuser and the camera.
First, while still on continuous mode of the camera, the Python-Focuser connection was tested.
Python can read the position and move the focuser. Units are steps. 1 step = 20µm

Having confirmed that one can move the focuser with Python, Vega was taken out of focus to test if we could focus the star using a small

script. script.

<--/twistyPlugin twikiMakeVisibleInline-->

step = -2000
new = 100
i = 0
prin = True
while abs(step)>50:
    old = new
    time.sleep(0.5)
    val = []
    for j in range(3):
        cam.Expose(0.1, 1)
        while not cam.ImageReady:
            if prin:
                print 'Step:', step
                prin = False
            else:
                time.sleep(0.1)
        cam.SaveImage('c:/Users/dome-pc/desktop/development/pythonscripts/astropy/new/userdata/testImg.fit')
        ap.load('test', ap.var.usrPath+'testImg.fit')
        m = ap.fitBrightest('test', fixAngle=True)
        val.append(m.values['sigy'])
    new = mean(val)
    if new > old:
        step = -round(step/2)
    POTHFocuser.Move(step)
    while POTHFocuser.IsMoving:
        if not prin:
            i = i+1
            print 'Image:', i, '  psf:', new
            prin = True
        time.sleep(0.5)

<--/twistyPlugin-->

During the tests, a cloud covered the target but the time was enough to show that the script can work.

Telescope was parked and disconnected.
Camera was also disconnected.

Log Book Entry No.14

Created: 12 Sep 2013 19:57:01

Last Revised: 19 Sep 2013 15:31:38

PedroPaiva

Test of Python Telescope Control

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