Changes between Initial Version and Version 1 of docs/CommissioningPlan/P3.6

Timestamp:

03/05/20 12:59:17 (5 years ago)

Author:

kradhakrishnan

Comment:

--

docs/CommissioningPlan/P3.6

@@ +1 @@
+ == P3.6        Orient the coronagraphs == 
+•       **Phase**               :       3  
+•       **Status**              :       Draft    
+•       **Category**            :       Nighttime testing (functionality and operability) (C4)
+•       **Recurrence**  :       once at commissioning
+•       **Duration**            :       40 minutes
+**Description**
+•       Adjust the orientation of the coronagraphic masks with respect to the true orientation of M2 spider.
+**Prerequisites**
+•       Atmospheric conditions: should be able to see bight stars on the sky (preferably close to zenith?).
+•       Authorize SHARK-NIR on the SX side.
+•       Suitable bright enough star close to zenith to have negligible effects from flexures (including the possibility of performing AO).
+**Procedure**
+•       Pointing to a star, the first coronagraph is inserted in the path. The bearing is rotated maximizing the contrast achieved on the SCICAM.  (use the pupil lens to see the pupils alignment maybe)?
+•       This operation is repeated for all the coronagraphs. 
+**Success criteria**
+•       All the coronograph are aligned to the true orientation of the M2 spider by maximizing the contrast at SCICAM. 
+•       Note down the contrast achieved for all the coronograph including the atmospheric conditions and the brightness of the on-axis star.
+**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**