OASIS daily checks

Version 1.1 (last update 3rd November 2007 by Jürg Rey)

These checks should be performed with a flattened DM e.g. after simplexing with AG7.

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Test the instrument
Take a test Image

Test the instrument

In the interests of brevity it has been assumed that users of this document will have a reasonable level of familiarity with the WHT observing environment. A key component of this environment is ING's ULTRADAS data acquisition system. For further information about this system please consult the Operations manual for UltraDAS.

To get light onto OASIS you need:

Select the 'OASIS obs' tab page within the combined INGRID/USP/OASIS Control GUI.
Here select a spatial sampling (e.g. 0.26) and wait for completion followed by choosing the Spectral configuration (e.g. MR516).
Finally select Exposure type IMAGING.
In order to direct light to OASIS send:
The NCU slide in Simplex position
The Simplex lamp ON
Simplex Iris set to -150
Dichroic 50/50
OASIS flat IN
Simplex flat OUT
Filter focus set for Simplex
SG loop closed

Take a test image

To take an image, enter at the prompt:

SYS@taurus> run OASIS 2

Wait until the ULTRADAS Camera mimic indicates that the detector has been read out and has been 100% processed. Make sure the images are written (with TCS header information) to the Observing Log.

Immediately after every readout, the Real Time Display Tool (RTD) will detect the new image file and load it to the XIMTOOL display window. You expect to see one spot close to the CCD centre.

After switching the simplex lamp OFF, take a bias to check the detector for noise.

Document History

Rev 1.0 Dec 18th 2005 JR; OASIS checks based on INGRID checks document.

Rev 1.1 Nov 3rd 2007 JR; Parts removed already contained in principal WHT check document.

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