James Webb Space Telescope optical performance predictions post cryogenic vacuum tests

Paul A. Lightsey; J. Scott Knight; Allison Barto; Koby Smith; Taylor Chonis; Laura Coyle; Scott Acton; Scott Rohrbach; Kim Mehalick; Lee Feinberg; William Hayden; Charles Atkinson; Conrad Wells; James Hadaway

doi:10.1117/12.2312276

6 July 2018 James Webb Space Telescope optical performance predictions post cryogenic vacuum tests

Paul A. Lightsey, J. Scott Knight, Allison Barto, Koby Smith, Taylor Chonis, Laura Coyle, Scott Acton, Scott Rohrbach, Kim Mehalick, Lee Feinberg, William Hayden, Charles Atkinson, Conrad Wells, James Hadaway

Author Affiliations +

Proceedings Volume 10698, Space Telescopes and Instrumentation 2018: Optical, Infrared, and Millimeter Wave; 1069804 (2018) https://doi.org/10.1117/12.2312276
Event: SPIE Astronomical Telescopes + Instrumentation, 2018, Austin, Texas, United States

Abstract

The James Webb Space Telescope is a large space-based astronomical telescope that will operate at cryogenic temperatures. Because of its size, the telescope must be stowed in an inoperable configuration for launch and remotely reconfigured in space to meet the operational requirements using active Wave Front Sensing and Control (WFSC). Predicting optical performance for the flight system relies on a sequence of incremental tests and analyses that has culminated with the cryogenic vacuum test of the integrated Optical Telescope Element (OTE) and Integrated Science Instrument Module (ISIM) referred to as OTIS. The interplay between the optical budgeting process, test verification results at incrementally increasing levels of integration, use of test validated models, and the WFSC process to produce the final optical performance predictions for final verification by analysis will be presented.

Conference Presentation

Citation Download Citation

Paul A. Lightsey, J. Scott Knight, Allison Barto, Koby Smith, Taylor Chonis, Laura Coyle, Scott Acton, Scott Rohrbach, Kim Mehalick, Lee Feinberg, William Hayden, Charles Atkinson, Conrad Wells, and James Hadaway "James Webb Space Telescope optical performance predictions post cryogenic vacuum tests", Proc. SPIE 10698, Space Telescopes and Instrumentation 2018: Optical, Infrared, and Millimeter Wave, 1069804 (6 July 2018); https://doi.org/10.1117/12.2312276

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available