Browse Publications Technical Papers 2006-01-2280
2006-07-17

Hubble Space Telescope Thermal Math Model Improvement after Fifteen Years of On-Orbit Operations 2006-01-2280

The Hubble Space Telescope (HST) was launched in 1990 and has undergone several Servicing Missions that have replaced and repaired various scientific and support hardware. As preparations begin for Servicing Mission Four (SM4) in 2008 and the life extension activities that follow, the Telescope Thermal Math Model (TMM) has been improved using the latest thermal analysis software and techniques.
Several efforts have been made to improve the HST system-level TMM since launch. A brief history of the major model updates, as well as the motivation behind the changes has been provided. The current improvements have provided the HST systems-level TMM a greater level of detail, while making model control more user-friendly and the results easier to verify. Several modeling techniques useful for spacecraft thermal design and operations support are discussed.

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