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To: Howard R. Hansen who wrote (24761)	1/26/2004 11:38:48 PM
From: Ausdauer	Respond to of 60323

Howard, I think they use radiation-hardenend components. I suspect when the project started there was only NOR for storage. They were thinking about using a microdrive but worried the spin momentum would lead the command module astray into some neighboring galaxy while at the same time chewing up more AA batteries than NASA could afford at that time. Aus

To: Howard R. Hansen who wrote (24761)	1/27/2004 5:25:16 PM
From: Howard R. Hansen	Read Replies (1) \| Respond to of 60323

Latest hypothesis on what caused problems in Spirit last week. This information is from the New York Times, January 27, 2004. "PASADENA, Calif., Jan 25 — NASA engineers managed on Monday to reproduce the type of computer crashes that have befallen the Mars rover Spirit since last week. If the root cause has been found, as engineers hope, the rover may return to complete health and resume its science mission in a week. The suspected cause will be familiar to any computer user who multitasks too much: too many files were open. A flaw in the rover programs allows the creation of an unlimited number of files, and the computer crashed trying to keep track of them, mission managers said. "