Changes between Version 6 and Version 7 of docs/CommissioningPlan/P3.1


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Timestamp:
04/22/22 20:39:43 (3 years ago)
Author:
kradhakrishnan
Comment:

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  • docs/CommissioningPlan/P3.1

    v6 v7  
    1  == P3.1         Telescope control – sending preset ==
     1 == P3.1         Telescope control – sending preset, telescope mode, offset, and focal plane geometry estimation ==
    22 
    33- **Phase**             :       3 
    … …  
    55- **Category**  :       Nighttime testing (functionality and operability) (C5)
    66- **Recurrence**        :       once at commissioning
    7 - **Duration**  :       2 hours
     7- **Duration**  :       4 hours
    88
    99**Description**
    1010- Preset of a bright enough on-axis star is sent to the telescope for verifying the communication to TCS, nighttime collimation model for SHARK-NIR, and the pointing accuracy.
     11- For the correct telescope mode for SHARK-NIR, find the offset direction & magnitude (for the field-stabilized mode), 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.
     12
    1113
    1214**Prerequisites**
    … …  
    1719- Send preset to the telescope from SHARK-NIR computer/system.
    1820- Check for the position of the star at the SCICAM. If needed, correct the offset to increase the pointing accuracy and record the new nighttime collimation model for the instrument.
    19 
     21**Procedure**
     221.      Procedure for sending preset
     23        -       Send preset to the telescope from SHARK-NIR computer/system.
     24        -       Check for the position of the star at the SCICAM. If needed, correct the offset to increase the pointing accuracy and record the new nighttime collimation model for the instrument.
     252.      Procedure for image orientation
     26        -       Select a filter
     27        -       Place the de-rotator in the nominal "zero" position.
     28        -       Issue a preset to move to a bright star (but not too bright to saturate)
     29        -       Center the star in the science channel
     30        -       Issue a pure elevation offset to the TCS of ca. 5" and verify the expected motion direction on the SCICAM
     31        -       Return to the on-axis position and repeat with a pure azimuth motion.
     32        -       Issue a preset to move to a suitable astrometric binary (typically 5-8 arcsec separation) and center one star in the science channel.
     33        -       Based on the published coordinates of the binary, issue the appropriate offset to center the other star.
     343.      Procedure for pixel scale/ plate scale
     35        -       Select a filter
     36        -       Issue a preset to move to a suitable astrometric binary to measure pixel scale (typically 5-8 arcsec separation)
     37        -       Center the binary in the upper half of the SCICAM and take several frames. Average these frames
     38        -       Move the binary to the lower half of the SCICAM and repeat.
     39        -       Use the difference image (optionally flat-fielded) to verify the expected pixel scale. This gives two measures.
     40        -       Repeat this for other filters.
    2041**Templates**
    2142
    2243**Success criteria**
    2344- Successful in sending preset to the telescope and, therefore, communication with LBT TCS.
    24 
     45- The image orientation is as expected. The pixel scale and field of view of the SCICAM are as expected.
    2546**Notes**
    2647