Approaches to developing tolerance and error budget for active three mirror anastigmat space telescopes

Heejoo Choi, Young Sik Kim, Hyukmo Kang, Solvay Blomquist, Hill Tailor, Douglas Kelly, Mike Eiklenborg, Ewan S. Douglas, Daewook Kim

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Scopus citations

Abstract

The size of the optics used in observatories is often limited by fabrication, metrology, and handling technology, but having a large primary mirror provides significant benefits for scientific research. The evolution of rocket launch options enables heavy payload carrying on orbit and outstretching the telescope’s form-factor choices. Moreover, cost per launch is lower than the traditional flight method, which is obviously advantageous for various novel space observatory concepts. The University of Arizona has successfully fabricated many large-scale primary optics for ground-based observatories including the Large Binocular Telescope (LBT, 8.4 meter diameter two primary mirrors), Large Synoptic Survey Telescope (now renamed to Vera C. Rubin Observatory, 8.4 meter diameter monolithic primary and tertiary mirror), and the Giant Magellan Telescope (GMT, 8.4 meter diameter primary mirror seven segments). Launching a monolithic primary mirror into space could bypass many of the difficulties encountered during the assembly and deployment of the segmented primary mirrors. However, it might bring up unprecedented challenges and hurdles, also. We explore and foresee the expected challenges and evaluate them. To estimate the tolerance and optical error budget of a large optical system in space such as three mirror anastigmat telescope, we have developed a methodology that considers various errors from design, fabrication, assembly, and environmental factors.

Original languageEnglish (US)
Title of host publicationAstronomical Optics
Subtitle of host publicationDesign, Manufacture, and Test of Space and Ground Systems IV
EditorsTony B. Hull, Daewook Kim, Pascal Hallibert
PublisherSPIE
ISBN (Electronic)9781510665682
DOIs
StatePublished - 2023
EventAstronomical Optics: Design, Manufacture, and Test of Space and Ground Systems IV 2023 - San Diego, United States
Duration: Aug 21 2023Aug 24 2023

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume12677
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

ConferenceAstronomical Optics: Design, Manufacture, and Test of Space and Ground Systems IV 2023
Country/TerritoryUnited States
CitySan Diego
Period8/21/238/24/23

Keywords

  • error analysis
  • optical budget
  • Space telescope
  • three-mirror anastigmatic
  • TMA
  • tolerance

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

Fingerprint

Dive into the research topics of 'Approaches to developing tolerance and error budget for active three mirror anastigmat space telescopes'. Together they form a unique fingerprint.

Cite this