Metrology for trending alignment of the James Webb Space Telescope before and after ambient environmental testing
| Autor: | Jeffery S. Gum, Theo Hadjimichael, Joseph S. Hayden, Greg Wenzel, Jerrod Young, Manal Khreishi, Kyle Mclean, Joe H. Sullivan, Kevin Redman, Joshua Berrier, Raymond G. Ohl, William L. Eichhorn |
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| Rok vydání: | 2017 |
| Předmět: |
Physics
Infrared astronomy Spacecraft business.industry James Webb Space Telescope Astrophysics::Instrumentation and Methods for Astrophysics Astrophysics::Cosmology and Extragalactic Astrophysics Optical telescope law.invention Primary mirror Telescope Optics law Observatory Astrophysics::Earth and Planetary Astrophysics Secondary mirror business |
| Zdroj: | Optical System Alignment, Tolerancing, and Verification XI. |
| Popis: | NASAs James Webb Space Telescope (JWST) is a 6.6m diameter, segmented, deployable telescope for cryogenic IR space astronomy. The JWST Observatory architecture includes the Optical Telescope Element (OTE) and the Integrated Science Instrument Module (ISIM) element which contains four science instruments (SIs). Prior to integration with the spacecraft, the JWST optical assembly is put through rigorous launch condition environmental testing. This work reports on the metrology operations conducted to determine any changes in subassembly alignment, including primary mirror segments with respect to each other, the secondary mirror to its support structure, the tertiary mirror assembly to the backplane of the telescope and ultimately to the ISIM. |
| Databáze: | OpenAIRE |
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