AF2 and WYFFOS Daily Duty Checks

Any errors or suggestions please email to Michiel van der Hoeven

The following commands that  are to be typed at the ICL command line, are given after the ICL prompt.

Testing AUTOFIB

1. Waking the robot.
   • 14:01:00 > afwake
   • This turns the AF2 power on. At ICL the Autofib mimic will update and all the variables turn green. You should also hear the pneumatic gripper being exercised. If this does not work it is probably either the system is accepting local commands only or the VME needs booting in GHRIL. (See engineering notes for detailed instruction.)
2. Turn on the WYFFOS back-illumination.
   • 14:02:30 > afbackillum on
   • This turns WYFFOS back-illumination. Backillumination sends light from WYFFOS up the fibres to AF2. Also it turns on the TV back-illumination.
3. View a science fibre.
   • 14:03:00 > afviewfibre 15
   • This moves the robot gripper camera to the co-ordinates for this particular science fibre. On the Autofib monitor in the control room should be the illuminated fibre. If you see no fibre check on WYFFOS mimic display that backillum is on.
4. View a guide fibre.
   • 14:05:30 > afviewfibre 32
   • >. As above but this checks that the backillumination is on to the guide fibres. NB the illuminated fibre on the TV monitor looks smaller than a science fibre, this is because a mask is in front of it.
5. Load the small fibre module.
   • 14:06:30 > afloadm
   • This locates and re-affirms the fibre positions. NB This command turns backillumination ON if it is not already on. This normally takes no more than 10 minutes. No fibres are moved with this command. If it fails to complete go to Autofib engineering notes.
6. Turn off the backillumination
   • 14:20:00 > afbackillum off
7. Park the AF2 Robot
   • 14:21:30> afparkr
   • This parks the robot to the edge of the fibre field but the power remains on.
8. Move the off-axis mobile probe into the field.
   • 14:25:00 > afmovp 150000
   • This moves the off-axis probe. NB the robot must be parked <afparkr> to complete this operation.
9. Move the off-axis mobile probe back to the back position.
   • 14:27:00 > afmovp 0
   • This moves the probe to its park position.

10. Turn off all dome lights
11. Turn the Wyffos calibration lamps on.
    • 14:30:00 > wcal 2  on
    • This turns a neon lamp in the calibration unit on
12. Take an 1 sec exposure with AG1 (autoguider)

            You should see the ten fiducial bundles now

13. To test AG2 make sure the mobile probe is in the field
    • 14:30:00 > afwake
14. Take a 1 second exposure with AG2

            The mobile probe should be illuminated now

15. Sleep the robot
    • 14:34:30 >afsleep
    • This safely parks robot out of the field and turns the power off.

This is not a detailed check but proves communications. Moving other things like the grating can disturb the observers set-up.

Note: make sure after you issue a wfilt command you wait until it completes the filter movement and the focus adjustment before giving the next command. Otherwise the focus correction will not be aplied correctly

16. Check WYFFOS filter slide A
    • 14:36:00 > wfilta in
    • 14:38:00 > wfilta out
17. Check WYFFOS filter slide B
    • 14:40:00 > wfiltb in
    • 14:42:00 > wfiltb out
18. Make sure the Nitrogen flush for the CCD window is switched on (especially in winter with humid conditions) Open epics engineering consul and switch LN2 flow on.
19. Switch neon lamp on 
    • 14:43:00 > wcal 2 on
20. Take an exposure with wyffos on taurus 
    • Sys >run whtwfc 10
    • Display in DS9 and analyse with Iraf to see whether there are arclines visible
21. Switch calibration lamps off
    • 14:44:00 > wcal off
22. Take a bias frame with wyffos on taurus
    • Sys >bias whtwfc
    • Display in DS9 and analyse image and check the noise

23. Use the wyffos mimic to display corrector element positions.
    • 14:44:00 > adc_auto disable
    • 14:47:00 > adc 90
    • 14:50:00 > adc -90
    • 14:53:00 > adc auto_enable

Last updated 17 feb 2005 by MVDH