Roman optical telescope integration status and preparation for test

Tony L. Whitman; Peter Miller; Joshua Abel; Bente Eegholm; Matthew Bolcar; J. Scott Smith; Brian Martens; Pete McCarthy; Joel Proebstle; Erin Schiele

doi:10.1117/12.2679201

4 October 2023 Roman optical telescope integration status and preparation for test

Tony L. Whitman, Peter Miller, Joshua Abel, Bente Eegholm, Matthew Bolcar, J. Scott Smith, Brian Martens, Pete McCarthy, Joel Proebstle, Erin Schiele

Author Affiliations +

Proceedings Volume 12676, UV/Optical/IR Space Telescopes and Instruments: Innovative Technologies and Concepts XI; 126760P (2023) https://doi.org/10.1117/12.2679201
Event: SPIE Optical Engineering + Applications, 2023, San Diego, California, United States

Abstract

The OTA for the Nancy Grace Roman Space Telescope includes the primary mirror, secondary mirror, and aft optics for guiding light into the Wide Field Instrument and the Coronagraph Instrument. The telescope is taking shape as the tested optical mirror assemblies are integrated. The assemblies have been thermal cycled to the cold temperatures for infrared operation, load tested to launch loads, vibration tested, and optically tested. Testing included launch-level vibration testing of the 2.4-meter light-weighted primary mirror assembly. In addition, the telescope control electronics (TCE) box has been fully assembled and the environmental testing of the TCE is progressing. Pictures and descriptions of the integration and test progress are provided, along with performance results measured at these levels of assemblies. Planning and test equipment preparation for the telescope thermal vacuum testing continues including plans to take advantage of the large dynamic range available with focus diversity phase retrieval and a Shack-Hartmann wavefront sensor for the gravity-sagged primary mirror.

Conference Presentation

(2023) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Tony L. Whitman, Peter Miller, Joshua Abel, Bente Eegholm, Matthew Bolcar, J. Scott Smith, Brian Martens, Pete McCarthy, Joel Proebstle, and Erin Schiele "Roman optical telescope integration status and preparation for test", Proc. SPIE 12676, UV/Optical/IR Space Telescopes and Instruments: Innovative Technologies and Concepts XI, 126760P (4 October 2023); https://doi.org/10.1117/12.2679201

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