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dc.creatorOusley, Wes
dc.creatorParrish, Keith
dc.creatorThomson, Shaun
dc.creatorYang, Kan
dc.date.accessioned2022-06-21T14:27:30Z
dc.date.available2022-06-21T14:27:30Z
dc.date.issued7/10/2022
dc.identifier.otherICES-2022-416
dc.identifier.urihttps://hdl.handle.net/2346/89864
dc.descriptionWes Ousley, Lentech, Inc, US
dc.descriptionKeith Parrish, NASA/GSFC, US
dc.descriptionShaun Thomson, NASA/GSFC, US
dc.descriptionKan Yang, NASA/GSFC, US
dc.descriptionICES202: Satellite, Payload, and Instrument Thermal Controlen
dc.descriptionThe 51st International Conference on Environmental Systems was held in Saint Paul, Minnesota, US, on 10 July 2022 through 14 July 2022.en_US
dc.description.abstractThe James Webb Space Telescope (JWST) is expected to be the premier space based astronomical observatory when it reaches its intended operational temperatures in the Spring of 2022. The cryogenic telescope portion features a deployed 6.5 meter primary mirror, backplane structure, and instrument complement passively cooled below 50Kelvin. Cooling to these temperatures is enabled by an L2 orbit, a 22x10 meter deployed sunshield, and numerous thermal isolation schemes. Proper observatory thermal performance will allow the scientific instruments to observe exoplanet formation, evolution of galaxies, and characteristics of the early universe. Prior to launch, extensive thermal testing was performed on a thermal simulator and the flight telescope to characterize on-orbit thermal performance including the ~120 day post-launch cooldown. This paper focuses on early JWST flight thermal performance, expected cryo-stable temperatures, and comparisons to test results and analytical predictions.
dc.format.mimetypeapplication/pdf
dc.language.isoengen_US
dc.publisher51st International Conference on Environmental Systems
dc.subjectJWST Thermal Design
dc.subjectJWST Thermal Analysis
dc.subjectJWST Flight Thermal Performance
dc.subjectCryogenic Telescope Thermal Design
dc.titleJames Webb Space Telescope Initial On-Orbit Thermal Performance
dc.typePresentationen_US


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