Changes between Initial Version and Version 1 of docs/CommissioningPlan/P3.4

Timestamp:

03/05/20 12:57:52 (5 years ago)

Author:

kradhakrishnan

Comment:

--

docs/CommissioningPlan/P3.4

@@ +1 @@
+ == P3.4        Telescope control – focal plane geometry estimation == 
+•       **Phase**               :       3  
+•       **Status**              :       Draft    
+•       **Category**            :       Nighttime testing (functionality and operability) (C4)
+•       **Recurrence**  :       once at commissioning
+•       **Duration**            :       1 hour(s)
+**Description**
+•       Verify the proper image orientation, pixel scale, field of view, and distortion at the SCICAM. Note that this may be performed with and without AO running.
+**Prerequisites**
+•       Atmospheric conditions: should be able to see bight stars on sky (preferably close to zenith?).
+•       Authorize SHARK-NIR on the SX side.
+•       Suitable binary or astrometric targets.
+•       AO running for part of the test.
+**Procedure**
+1.      **Procedure** for image orientation
+        -       Select a filter
+        -       Place the de-rotator in the nominal "zero" position.
+        -       Issue a preset to move to a bright star (but not too bright to saturate)
+        -       Center the star in the science channel
+        -       Issue a pure elevation offset to the TCS of ca. 5” and verify expected motion direction on the SCICAM
+        -       Return to the on-axis position and repeat with a pure azimuth motion.
+        -       Issue a preset to move to a suitable astrometric binary (typically 5-8 arcsec separation) and center one star in the science channel.
+        -       Based on the published coordinates of the binary, issue the appropriate offset to center the other star.
+2.      **Procedure** for pixel scale/ plate scale
+        -       Select a filter
+        -       Issue a preset to move to a suitable astrometric binary to measure pixel scale (typically 5-8 arcsec separation)
+        -       Center the binary in the upper half of the SCICAM and take several frames. Average these frames
+        -       Move the binary to the lower half of the SCICAM and repeat.
+        -       Use the difference image (optionally flat-fielded) to verify the expected pixel scale. This gives two measures.
+        -       Repeat this for other filters.
+**Success criteria**
+•       The image orientation is as expected. The pixel scale and field of view of the SCICAM are as expected.
+**Notes**
+**LBTO support**
+•       Support from LBTI/LBTO?
+•       Presence of John Hill usually helps while collimating for the first time. 
+•       Steve Allenson (as the TO) will be a great asset too.
+**Associated SHARK-NIR personnel**
+•       JF, LM, MdP, MM (from AZ), DV?
+**Date performed and by whom**