These checks should be
performed in conjunction with the WHT check list .
WHT ULTRADAS startup for INGRID
Login to the observing system ICS computer (currently taurus) as: whtobs
The following two windows should then appear:
The Observing System (pink) window. This is the window where observer's commands are entered.
The DAS Terminal (orange) window. This window contains a number of tab pages, each one corresponding to a WHTDAS machine.
Prior to starting
any of the observing software INGRID needs to be configured for use. In
the Observing System (pink) window enter:
obssys -c, followed by option 1
Review the cameras
and instruments that are currently defined in the observing system. If necessary
Edit the WHT configuration file (look on the CCD whiteboard to see which DAS machine is hosting the INGRID camera server and edit the configuration file.)
Using the Combined
Terminal (orange) window select the tab page associated with the INGRID
camera server. Type:
followed by option 1, then option 1 again. At the end of this configuration procedure you should receive a WHTDASn prompt (where n refers to the das machine you are on).
Again, in the same
window type: startobssys
to load the ULTRADAS camera software.
At the Observing System (pink) window type: startobssys to start the main components of the observing system.
Datum the INGRID Mechanisms
Select the Ingrid GUI, in the drop down menu open the control GUI
Enable the control GUI by clicking on the red button in the top right corner.
On the control GUI click to Initialise Filter Wheel 1
On the control GUI click to Initialise Filter Wheel 2
On the control GUI click Initialise the Pupil Wheel
At the command line type
filter ingrid dark
Take the Test Images
Take four test images, type multbias ingrid 4 in the pink window
Wait until the ULTRADAS Camera mimic indicates that the detector has been read out and has been 100% processed (four times because of the multbias issued). Make sure the images are written (with TCS header information) to the Observing Log. Check also that the filter information as displayed in the log is correct.
every readout, the Real Time Display Tool (RTD) will detect the new image
file and load it to the XIMTOOL display window. This image is the result
of the post-integration minus the pre-integration image that removes the
bias level from the image.
Check the Bias Level
Login on the WHT Data Reduction Sparc (whtdr) as: whtguest
Open the programs menu by clicking on the background and start an xgterm and ximtool session.
In the xgterm, start an IRAF session using the command: ecl
Load the image reduction package by typing: ingrid
Within IRAF, change to the obsdata directory where the images are being stored. This information can be found on the Ingrid ultradas Camera mimic. e.g.
The obsdata discs currently being: whta, whtb, whtc, whtd & whte.
It should be noted that a new 'date' directory is generated at 11:00 UTC daily
Each image pair is contained in a single FITS file with: rnnnnnnn being the last run number. .
To display the pre-integration image, enter at the IRAF prompt: display rnnnnnnn 1 fill+
To display the post-integration image, enter at the IRAF prompt: display rnnnnnnn 2 fill+
At the IRAF prompt, type: imexam
Check (using the m command) that the bias level of the two images is roughly the same value and at a level of between 11,000 and 15,000 ADU.
Exit imexam by typing: q (the cursor must be in the image area).
Check the Noise Level
Using the last 2 bias readout images check the readout noise of the array by using ifindron rmmmmmmm rnnnnnnn
Check that the displayed rms noise value is below 10 ADU rms.
Check the Array is sensitive
Using the GUI set filter wheel 1 to K, set filter wheel 2 and pupil stop to clear
At the command line take an exposure run ingrid 2
To display the bias subtracted image, enter at the IRAF prompt: idisp rnnnnnnn 3 fill+
Rev 2.0 Oct 18th 2001
PCM Updated INGRID checks based on WHT DE Check doc.
Rev 2.1 Jan 15th 2002 EJM Changes made due to uDAS upgrades.
Rev 2.2 Jul 17th 2002 EJM Short form version plus minor changes .
Rev 2.3 Sep 25th 2002 SGR Updated to eliminate use of CC cooler with NAOMI. Updated now INGRID mechs working again.
Rev 2.4 Nov 16th 2005 SGR. Updated to reflect current operating environment.
Rev 2.5 Feb 14th 2008 AWR. Updated & simplified.
Rev 2.6 Sep 12th 2008 AWR. Typos
Click here for the WHT home page.
THIS FILE: http://www.ing.iac.es/~eng/ops/wht/ingrid_checks.html