The thermal control subsystem is responsible for maintaining
the temperatures of each component on the spacecraft to
within their allowable limits. It does this using a combination
of active and passive control elements. The active components
are the heaters. The passive components are thermal paint,
blankets of black kapton on the backside of the spacecraft
and blankets of indium-10 oxide on the sunward side.
The thermal control subsystem weighs 15.9 kilograms
(35.1 pounds).
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