Changes between Version 8 and Version 9 of docs/CommissioningPlan/P3.5


Ignore:
Timestamp:
01/14/22 18:45:23 (3 years ago)
Author:
kradhakrishnan
Comment:

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  • docs/CommissioningPlan/P3.5

    v8 v9  
    1  == P3.5        Orient the coronagraphs ==
    2 •       **Phase**               :       3 
    3 •       **Status**              :       Draft   
    4 •       **Category**            :       Nighttime testing (functionality and operability) (C5) + Nighttime calibration (C6)
    5 •       **Recurrence**  :       before every observing target (CI, LSS), starting from commissioning.
    6 •       **Duration**            :       4 hours
     1 == P3.5        PSF Alignment ==
     2 
     3- **Phase**             :       3 
     4- **Status**            :       Draft   
     5- **Category**  :       Nighttime testing (functionality and operability) (C5) + Nighttime calibration (C6)
     6- **Recurrence**        :       before every observing target (CI, LSS), starting from commissioning.
     7- **Duration**  :       2 hours
     8
    79**Description**
    8 •       Adjust the orientation of the coronagraphic masks with respect to the true orientation of the M2 spider by rotating the SHARK-NIR derotator.
     10- Alignment of the PSF with occulter (or slit) in coronagraphic mode.
     11
    912**Prerequisites**
    10 •       Atmospheric conditions: should be able to see bright stars in the sky (preferably close to zenith?).
    11 •       Authorize SHARK-NIR on the SX side.
    12 •       Suitable bright enough star close to zenith to have negligible effects from flexures (including the possibility of performing AO).
     13- Bad pixel map, Background or Dark, Flat-field, detector RON
     14
    1315**Procedure**
    14 •       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 pupil's alignment maybe)?
    15 •       This operation is repeated for all the coronagraphs.
     16The internal deformable mirror's position (TTM_DM) is optimized to have the PSF image on the intermediate focal plane centered with the occulter. We compare the PSF image, formed on the SCICAM, with the image of the occulter obtained on the SCICAM using the calibration flat-field source.
     17
     18**Templates**
     19
    1620**Success criteria**
    17 •       All the coronagraphs are aligned to the true orientation of the M2 spider by maximizing the contrast at SCICAM.
    18 •       Note down the contrast achieved for all the coronagraphs including the atmospheric conditions and the brightness of the on-axis star.
     21- the expected accuracy of 0.2 pixels (DV: need to check if we can reach this).
     22
    1923**Notes**
     24- Same as activity 8.3 in AD4
     25- 7 cases, 30 mins per case.
     26
    2027**LBTO support**
    21 * AO support
    22 **Associated SHARK-NIR personnel**
     28- AO support
    2329
    2430**Date performed and by whom**
    25 **Comments**