bekerteli Posted January 5, 2022 Share Posted January 5, 2022 I have been watching the progress of James Webb since launch. I have a question about the hot side temperature sensors. I have noticed that there is quite a difference between the a and b sensors on the hot side and as the heat shield opens the cold side is starting to equal out. Why is there such a temperature difference between the hot side sensors? Link to comment Share on other sites More sharing options...
zeno76 Posted March 30, 2022 Share Posted March 30, 2022 I'm not sure, but I believe it's just that the cold side of the spacecraft's body hits the hot side. As a result, the section of the hot side that is exposed to the sun is cooler than the mylar-like sunshield. Because the sunshield is surrounded by space (which is the same material as the inside of thermos bottle walls), it collects heat and cannot release it. Link to comment Share on other sites More sharing options...
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