James Webb Space Telescope optical performance predictions post cryogenic vacuum tests

2018 ◽  
Author(s):  
Paul A. Lightsey ◽  
J. Scott Knight ◽  
Allison Barto ◽  
Koby Z. Smith ◽  
Scott O. Rohrbach ◽  
...  
Keyword(s):  
Optical Performance ◽  
Space Telescope ◽  
James Webb Space Telescope ◽  
Cryogenic Vacuum ◽  
Performance Predictions

Optical performance for the James Webb Space Telescope

2004 ◽  
Author(s):  
Paul A. Lightsey ◽  
Allison A. Barto ◽  
James Contreras
Keyword(s):  
Optical Performance ◽  
Space Telescope ◽  
James Webb Space Telescope

Optical performance verification of the James Webb Space Telescope

2008 ◽  
Author(s):  
Allison A. Barto ◽  
Charlie Atkinson ◽  
James Contreras ◽  
Paul A. Lightsey ◽  
Charley Noecker ◽  
...  
Keyword(s):  
Optical Performance ◽  
Performance Verification ◽  
Space Telescope ◽  
James Webb Space Telescope

Optical performance for the actively controlled James Webb Space Telescope

2010 ◽  
Author(s):  
Paul A. Lightsey ◽  
Dave Chaney ◽  
Ben Gallagher ◽  
Bob Brown ◽  
Koby Smith ◽  
...  
Keyword(s):  
Optical Performance ◽  
Space Telescope ◽  
James Webb Space Telescope

scholarly journals Modernization of NASA Johnson Space Center’s Chamber A to support Cryogenic Vacuum Optical Testing of the James Webb Space Telescope (JWST)

2021 ◽  
Vol 64 (1) ◽  
pp. 30-41
Author(s):  
Mary Cerimele ◽  
Jonathan Homan ◽  
Sam Garcia ◽  
Jaime Garza ◽  
Gabriel Hirsch ◽  
...  
Keyword(s):  
Vacuum Chamber ◽  
High Vacuum ◽  
Vacuum System ◽  
Thermal Vacuum ◽  
Space Telescope ◽  
James Webb Space Telescope ◽  
Cryogenic Vacuum ◽  
Optical Test ◽  
The World ◽  
Helium Refrigeration

Abstract NASA is the mission lead for the James Webb Space Telescope (JWST), the next of the “Great Observatories,” scheduled for launch in 2021. NASA is directly responsible for the integration and test (I&T) program that culminated in an end-to-end cryo vacuum optical test of the flight telescope and instrument module in Chamber A at NASA Johnson Space Center. Historic Chamber A is the largest thermal vacuum chamber at Johnson Space Center and one of the largest space simulation chambers in the world. Chamber A has undergone a major modernization effort to support the deep cryogenic, vacuum and cleanliness requirements for testing the JWST. This paper describes the upgrades to the Chamber A facility: Thermal Shrouds, Helium Refrigeration, Liquid Nitrogen System, High Vacuum System, Clean Airflow System, and Utilities.

Sign in / Sign up

Export Citation Format

Share Document