Mark Waldman

TL;DR: In this paper , the authors characterize the actual science performance of the James Webb Space Telescope (JWST), as determined from the six month commissioning period, with an emphasis on differences from pre-launch expectations.

TL;DR: The JWST Test team undertook an effort to greatly simplify the optical metrology approach, while retaining the key measurements and verification methodology as mentioned in this paper, and the result is a cryogenic optical test configuration and implementation using Chamber A at NASA's Johnson Space Center that uses the science instruments to help understand the optical performance.

TL;DR: In 2017, the James Webb Space Telescope Optical Telescope Element and Integrated Science Instrument Module (OTIS) underwent cryogenic optical testing at the Johnson Space Center as mentioned in this paper, which was a major program milestone.

TL;DR: In this paper, the final and only cryogenic optical test of the James Webb Space Telescope Optical Telescope Element (OTE) and OE instrument module (OTIS) is described.