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

Ronald W. Toland

doi:10.1117/12.502248

20 November 2003 Precision metrology system for the Hubble Space Telescope Wide Field Camera 3 instrument

Ronald W. Toland

Proceedings Volume 5190, Recent Developments in Traceable Dimensional Measurements II; (2003) https://doi.org/10.1117/12.502248
Event: Optical Science and Technology, SPIE's 48th Annual Meeting, 2003, San Diego, California, United States

Abstract

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 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.

Citation Download Citation

Ronald W. Toland "Precision metrology system for the Hubble Space Telescope Wide Field Camera 3 instrument", Proc. SPIE 5190, Recent Developments in Traceable Dimensional Measurements II, (20 November 2003); https://doi.org/10.1117/12.502248

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