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Pitching a Clean Tent #2

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How do you provide an even cleaner environment inside an already super tidy clean room? Engineers use a clean tent, which is positioned, in this picture, over a portion of one of the twin STEREO observatories during a lens cover deployment test for one of the SECCHI instruments.

The SECCHI (Sun Earth Connection Coronal and Heliospheric Investigation) instrument suite will obtain the first direct imaging observations of coronal mass ejections in interplanetary space. SECCHI's principal investigator is Russell Howard of the Naval Research Laboratory, Washington, D.C.

Credit: NASA/Johns Hopkins University Applied Physics Laboratory