AUTOFIB/WYFFOS Quick Notes

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AF2/WYFFOS Quick Notes

More detailed information on working with AF2 can be found on the main AF2 TO page and on the 'First Night' page. This page is intended to give Quick access to AF2 info for the experienced TO/user. This is the first draft of the page, if there is anything else you would like to see here please mail me (cardwell@ing.iac.es ).

Useful Info

Rotator Range: -163.37...193.63
Focus: 82.5 (now good for AF2 and TV)
Mobile Probe FOV: 20' by 30'
Fiducial Fibre FOV: 8" (central ring of mask: 1.6")
AF2 Command manual

Setup

USER> STATION PRIME
USER> INSTRUMENT AUTOFIB
USER> AGSELECT AF2_TV
Zeroset as normal.
TV: Go to SAOimage DS9 Zoom menu and set 90 deg and Invert Y to map TCS arrow keys to screen.
Autoguider: Go to SAOimage DS9 Zoom menu and set Invert Y and 0 deg to map TCS arrow keys to screen.

Centres of the Fiducial Fibres

Load the region file containing the most recent map of the fiducial fibres (if necessary).
TO> wcallamp 4 (turn on the lamp to illuminate the fibres)
Update the map of the fiducial fibres.
TO> wcallamp off

Acquiring a Field

Set sky PA (USER> rot sky xxx)
Point to field centre.

If the astrometry used for the configuration and the telescope pointing are good then some of the guide stars should be visible in the fiducial Fibres. Adjust telescope pointing and rotator position with handset to acquire. If you can't see and guide stars try the long acquisition procedure.

TO> af2 sleep (if the observer forgets to do it)

Guiding

Select well centered fiducial fibre near field centre.
Set integration time and guide box size.
Select 'guide on pixel' and give x y.
If an error message is triggered try doing USER> auto on x y and start guiding again on autoguider GUI.

Acquiring Standard Star onto Science Fibre

USER> rot sky xxx
USER> gocat STARNAME
TO> af2 offsettel SKYPA STARNAME SCIENCEFIBRENR

Answer 'yes' and centre the star on the GRIPPER centre

TO> af2 sleep

Taking Arcs

The observer will take the arcs but remember to offset the telescope or close the mirror petals or else they will record spectra from both the lamp AND their science objects.