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Precision metrology system for the Hubble Space Telescope Wide Field Camera 3 instrument

Ronald W. Toland, Jennifer E. Decker, Nicholas Brown
2003 Recent Developments in Traceable Dimensional Measurements II  

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The Wide Field Camera 3 (WFC3) instrument for the Hubble Space Telescope (HST) will replace the current Wide Field and Planetary Camera 2 (WFPC2). By providing higher throughput and sensitivity than WFPC2, and operating from the near-IR to the near-UV, WFC3 will once again bring the performance of HST above that from ground-based observatories. Crucial to the integration of the WFC3 optical bench is a pair of 2-axis cathetometers used to view targets which cannot be seen by other means when the
more » ... bench is loaded into its enclosure. The setup and calibration of these cathetometers is described, along with results from a comparison of the cathetometer system with other metrology techniques.
doi:10.1117/12.502248 fatcat:tflrqe6nc5dppbd5fs2h4jlkge
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Ronald W. Toland, Jennifer E. Decker, Nicholas Brown. "Precision metrology system for the Hubble Space Telescope Wide Field Camera 3 instrument." Recent Developments in Traceable Dimensional Measurements II (2003)