Thermal Design of Space Support Equipment for the Hubble Space Telescope Servicing Mission

During the First Servicing Mission for the Hubble Space Telescope, two replacement instruments and several spacecraft components were installed successfully. Most of the replacement hardware was carried up in protective enclosures that provided thermal control over a wide range of potential mission attitudes. Some items added late to the mission were protected by passive thermal systems and attitude constraints on the Shuttle. This paper focuses on thermal design challenges presented by the replacement hardware, enclosures, and carriers, and includes an assessment of flight thermal performance.