File:JWST Segment Alignment.gif
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Summary
| Description |
English: Segment Alignment
After we have the image array, we can perform Segment Alignment, which corrects most of the large positioning errors of the mirror segments. We begin by defocusing the segment images by moving the secondary mirror slightly. Mathematical analysis, called Phase Retrieval, is applied to the defocused images to determine the precise positioning errors of the segments. Adjustments of the segments then result in 18 well-corrected “telescopes.” However, the segments still don’t work together as a single mirror. |
| Date | |
| Source | https://svs.gsfc.nasa.gov/cgi-bin/details.cgi?aid=20358&button=recent |
| Author | NASA/Goddard Space Flight Center Conceptual Image Lab |
Licensing
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This file is in the public domain in the United States because it was solely created by NASA. NASA copyright policy states that "NASA material is not protected by copyright unless noted". (See Template:PD-USGov, NASA copyright policy page or JPL Image Use Policy.) |  |
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 11:23, 1 May 2022 | | 690 × 388 (2.24 MB) | Artem.G | Uploaded a work by NASA/Goddard Space Flight Center Conceptual Image Lab from https://svs.gsfc.nasa.gov/cgi-bin/details.cgi?aid=20358&button=recent with UploadWizard |
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