The James Webb Space Telescope: Observatory Status and Preparations for Launch

[摘要] The James Webb Space Telescope (JWST) is a large (6.5 meter) segmented aperture telescope equipped with near- and mid-infrared instruments (0.6-28 microns), all of which are passively cooled to approximately 40 degrees Kelvin by a 5-layer sunshield while the mid-infrared instrument is actively cooled to 7 degrees Kelvin. The JWST telescope recently completed its cryogenic test program and the sunshield has been fully integrated and deployed. JWST is currently in the final stages of the test program at the Observatory level. The current estimated JWST performance metrics will be presented, such as the image quality, pointing stability, sensitivity, and stray light backgrounds. The JWST development status and future plans will be described for the final testing, launch, and commissioning.

[发布日期] 2018-06-19

[学科分类] 原子、分子光学和等离子物理

[关键词] JAMES WEBB SPACE TELESCOPE;INSTRUMENT PACKAGES;CRYOGENIC EQUIPMENT;PERFORMANCE TESTS;IMAGE ANALYSIS;ACOUSTIC PROPERTIES