'Aft optics' diaporamas de présentation

Outline

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Status of the James Webb Space Telescope (JWST) Optical Telescope Element (OTE)

Status of the James Webb Space Telescope (JWST) Optical Telescope Element (OTE) Northrop Grumman: Charlie Atkinson, Scott C. Texter NASA/GSFC: Lee Feinberg, Ritva Keski-Kuha July 6th, 2012. GSFC. JWST Observatory Breakdown. Optical Telescope Element (OTE).

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Thermal Design Parameters

High Earth Orbit, 3Re to 25Re, 3 day period Primary mirror diameter 2m Hubble is 2.3m diameter OTA very sensitive to temperature changes 2 micron vertical shift would defocus image Detectors at 140K, area 0.3m 2 , passively cooled. Thermal Design Parameters. Overall View. Solar array

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