Credit: TMT International Observatory / ITCC
TMT Segment Support Assemblies (SSA) are opto-mechanical systems that provide the support for each individual piece of mirror segment. During transport and storage within their container, SSAs are entirely wrapped in a zipped closed Intercept fabric bag for protecting the delicate electronic features from moisture and corrosive environment. Data loggers are mounted into the container and on the SSA to monitor and collect information on shock amplitude, temperature and humidity.