Thermal Management of JWST Cryo-Vacuum Test Support Equipment
MetadataShow full item record
In 2017, the James Webb Space Telescope (JWST) underwent functional testing and optical metrology verification of the combined Optical Telescope elements and Integrated Science Instrument Module (OTIS) under cryogenic vacuum conditions in Chamber A at the Johnson Space Center. The ground support and test equipment developed and tested over the previous decade to facilitate this test event were crucial elements of its success. Ground systems required for this test fall into several groups, including thermal simulators, mechanical support hardware, telemetry systems, and metrology systems. This paper will provide a summary of these systems, their development challenges, and key features, and will highlight thermal performance in the cryo-vacuum test.