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Phasing the Primary Mirror Segments of the Keck Telescopes A Comparison of Di erent Techniques Gary Chanana Mitchell Troyb and Catherine Oharaa a University of California Irvine Department of Physics and Astronomy Irvine CA 92697 b Jet Propulsion Laboratory California Institute of Technology Pasadena CA 91109 ABSTRACT We have developed and tested extensively three di erent methods for phasing the primary mirror segments of the Keck telescopes.

How to fill out phasing the primary mirror

How to fill out phasing form primary mirror:

1. Start by carefully examining the primary mirror for any visible defects or damage. Clean the mirror surface if necessary using a soft, lint-free cloth.
2. Next, identify the location of the center spot on the mirror. This is usually marked by a small dot or crosshair. Ensure that the center spot is visible and aligned properly.
3. Using a collimation tool, adjust the alignment of the primary mirror by tweaking the mirror's tilt and position. Follow the instructions provided with the collimation tool to achieve optimal alignment.
4. Once the mirror is correctly aligned, record the collimation adjustments made on the phasing form. Include details such as the direction and amount of adjustment for each parameter.
5. Additionally, record any observations or notes regarding the primary mirror's performance and image quality on the phasing form. This can be helpful for future reference or troubleshooting purposes.
6. Finally, sign and date the phasing form to indicate that the primary mirror has been properly filled out.

Who needs phasing form primary mirror:

1. Astronomers and amateur astronomers who own telescopes with a primary mirror require a phasing form to document the alignment adjustments made to the mirror. This helps ensure accurate collimation and optimal telescope performance.
2. Professional observatories and research institutions that use telescopes with primary mirrors also use phasing forms to maintain a detailed record of mirror adjustments and performance evaluations. This aids in the analysis of data and the ongoing maintenance of the telescopes.

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What is phasing form primary mirror?

The phasing form primary mirror refers to a document that is used to report the alignment and adjustment measurements of the primary mirror of a telescope or optical instrument.

Who is required to file phasing form primary mirror?

Any individual or organization that performs maintenance or calibration on the primary mirror of a telescope or optical instrument is required to file the phasing form.

How to fill out phasing form primary mirror?

To fill out the phasing form primary mirror, you need to provide detailed information about the alignment and adjustment measurements conducted on the primary mirror. This includes recording the specific adjustments made, any errors and corrections, and any other relevant data or observations.

What is the purpose of phasing form primary mirror?

The purpose of the phasing form primary mirror is to document the measurements and adjustments made to the primary mirror to ensure its proper alignment and performance. It serves as a record for future reference and helps to maintain the accuracy and quality of the telescope or optical instrument.

What information must be reported on phasing form primary mirror?

The phasing form primary mirror typically requires the reporting of specific details such as the date and time of the measurement, the adjustments made, any errors or discrepancies encountered, and the final alignment or adjustment achieved. It may also require additional information such as the type of instrument used, the testing methodology, and any other relevant notes or observations.