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Mission Control
Answers Your Questions

From: James Sutherland, of Vancouver, Wash.
To: Jeff Hanley, flight director


Question: Just after 16:30 CST on Jan. 16, a call up was made to Columbia about a "View Port Violation" which would require the crew to cover the viewports. I've never heard this call before, and I'm curious what it refers to.

Answer: The SPACEHAB has two windows, or viewports, that are temperature-sensitive. To prevent viewport (temperature limit) violations, the viewport covers are closed if the temperatures are predicted to get too hot or too cold. There are also cases in which the crew may be requested to turn on or turn off heaters associated with the viewports to maintain acceptable temperatures.


View a list of answered questions or ask MCC your own question.

Curator: Kim Dismukes | Responsible NASA Official: John Ira Petty | Updated: 01/22/2003
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