OASIS DE Checks

 

 

1. Starting the Observing System

 

- Before performing a 'startobssys', log in as whtobs to the PC (currently whticspc) to the right of the ICS computer. This is essential for the AO light path mimic to be correctly launched.

- When configuring OASIS into the observing system, ensure that NAOMIACQ (currently AG3) and NAOMISIMPLEX (currently AG7) are also configured.

- Once the observing system has been started, ensure that the following pop up windows appear:

·       Talker

·       Observing Log

·       ULTRADAS camera mimic

·       Who goes there?

·       OASIS RTD tool

·       ds9 image display window (used for the display of the RTD images)

·       Acquisition tool

·       Light path mimic (This should automatically appear on the whticspc screen.)

 

[Aside: The Codeso software needs starting up on a separate machine. Sergio can provide the most up-to-date details on this. This will bring up the INGRID/Light path/OASIS control GUI. It should be checked that none of the status items are in red.]

2. Initialising the USP Mechanisms

 

1. Ensure that no one is working at the AO bench in GRACE, as some bench mechanisms will be moved.

2. Select the 'Light Path' tab page from the Codeso Control GUI. For each of the following mechanisms, go to their drop down menu and select Initialise. (Note that all the initialisations can be performed simultaneously.)

·       NCU slide

·       Irises - Spectral

·       Irises - Continuum

·       Irises - Simplex

·       Filter focus

 

3. Test the Acquisition Tool can grab images from AG3/OASIS

 

1        Type at the prompt:

SYS@taurus> setcamera oasis ag3

This will ensure that the correct windowing and binning is selected for the two cameras.

 

2        Locate the “Acquisition Tool” GUI.

 

3        Click on the menu option Grab, then select Grab Acquisition Image. A “Grab Image” GUI should appear. Check that the top parameter, “Duration (secs)”, is set to a low value (e.g. 1 or 0.1), altering it if necessary.

 

4        Click on Grab Image. This should take an AG3 exposure and automatically load it into the display window of the main GUI. (Some green and/or red overlays should also be drawn.)

 

5        Now click on the menu option Grab, then select Grab OASIS Image. An “OASIS Image Acquisition” GUI should appear. Check that the “Duration (secs)” is set to a low value (e.g. 1), altering it if necessary.

 

6        Click on Grab Image. This should take an OASIS exposure and automatically load it into the display window of the main GUI. (This should take less than a minute.) A yellow overlay should also be drawn.

 

4.    Test Communication with the TCS

 

Check the OCSCorbaDramaInterface is working: Check that the sidereal time (ST) is being updated every second at the top of the AO light path mimic. If not, this is likely to indicate that either (i) the TCS is not running or (ii) there is a problem with the OCSCorbaDramaInterface and it should be restarted (see http://www.ing.iac.es/faultdb/reports/report/show/eng/17037 for details).

 

5.    Take test images (bias and arc)

 

1        Go to the LIGHTPATH tab of the INGRID/LIGHTPATH/OASIS Codeso Control GUI and put the Bench in the Fixed position if is ‘Floated’. This is essential for taking arc frames, and should be done in advance as it can take ~ 5 minutes for the bench to reach the required position.

 

2        You should already have selected the correct windowing and binning for OASIS while testing the acquisition tool. If not, type at the prompt:

SYS@taurus> setcamera oasis

 

3        Take a bias image by entering at the prompt:

SYS@taurus> bias oasis

 

4        Display the bias frame and check the noise.

 

5        The remainder of this section should not be performed during the middle of a run, as it will alter the instrument configuration. Go to the OBSTOOL tab of the INGRID/LIGHTPATH/OASIS Codeso Control GUI. Use the configuration tool to set up the light path for an arc, as follows:

- Select the Spectral config to be MR661

- Select the Spatial sampling to be 0.26 spectro (22mm)

- Select the Observing mode to be Arc (Neon)

- Click on the Select All button

- Click on Configure Selected Items

While OASIS and the AO bench are being configured, the status items on the Codeso GUI will appear in blue.

 

6        Check that the AO light path mimic is being updated. The status of moving mechanisms should be indicated by blue text. Once configured, the mimic should display a light blue line starting from the NCU slide and reaching the OASIS detector.

 

7        Take an arc image by entering at the prompt:

SYS@taurus> arc oasis 2 “Ne MR661_26”

During the exposure and its readout, check that the OASIS camera status is being updated on the light path mimic (in the bottom right hand corner).

 

8        Wait until 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. The log should also display the OASIS configuration and observing mode (MR661_26  3).

 

9        Immediately after every readout, the Real Time Display Tool (RTD) should detect the new image file and load it to the ds9 display window. Check that this is the case.

 

10    Check that the OASIS image headers of the arc image are okay. These can be checked as follows:

 

SYS@taurus> imhead /obsdata/whta/20070514/r999999.fit | grep ^OA

 

The following headers should appear:

 

OAFCLASS=                    3 / File Class (for DR)

OAPSCAL = 'n/a               ' / Imaging Plate Scale (microns/arcsec)

OACONFIG= 'MR661_26          ' / Configuration Name

OAFOCPL = 'Clear Aperture 1  ' / Focal Plane Id

OAENLRGE= '22 mm, 11.2       ' / Enlarger Id

OAFILTER= 'MR661,6214-7001,6161-7100,6.05,1.40,-3.33' / Filter Id

OAIMAGER= 'Clear aperture,   ' / Imaging Id

OASAMPLE= 'TIGER lens array,1.19,8.24' / Sampler id

OAWDGSL =                    1 / Wedge Slide (1=IN/0=OUT)

OAWDGAN = '-17.0             ' / Wedge Angle

OAGRISM = 'R300,300,21.6,SK5,7300,5500-9500' / Grism Id

OACAMPOS=            -3.330000 / Camera Position

 

11    Display the arc frame and check that an array of (thousands of) bright spots is present. These spots should all fall within the image array and not touch the edge of it. Use imexam and the ‘r’ button to fit a radial profile to one of the bright spots. The peak counts should be ~20000-30000 counts.

 

[Aside: Ideally, before the first night of a run, we should also check continuum/micropupils frames. This will thoroughly test all the mechanisms and the light path. Sergio is meant to be making the configuration tool scriptable. Once this is done, I plan to write a script which the DEs can run that will take all the necessary exposures. This would also make sections 2 and 5 simpler as much of them are scriptable. In addition, it is important for the person doing the flattening to check the quality/position of the PSF on OASIS. However this requires specialist knowledge and shouldn’t be the DE’s responsibility.]

Document History:

 

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

Rev 2.0 Nov 6th 2007 srix; new document.

THIS FILE: http://www.ing.iac.es/~eng/ops/wht/oasis_checks.htm