Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!zaphod.mps.ohio-state.edu!mips!ptimtc!nntp-server.caltech.edu!iago.caltech.edu!carl From: carl@iago.caltech.edu (Lydick, Carl) Newsgroups: sci.space.shuttle Subject: Re: Mission Map question Message-ID: <1991Jun7.143751.29580@nntp-server.caltech.edu> Date: 7 Jun 91 14:34:12 GMT References: <1991Jun7.134837.11390@b15.b15.ingr.com> Sender: news@nntp-server.caltech.edu Reply-To: carl@iago.caltech.edu Organization: California Institute of Technology Lines: 12 News-Software: VAX/VMS VNEWS 1.3-4x In article <1991Jun7.134837.11390@b15.b15.ingr.com>, ptc@b15.b15.ingr.com (Paul Carter) writes... >Also, what is the South Atlantic Anomoly? The South Atlantic Anomaly is a part of the radiation belts over the South Atlantic that anomalously reaches a much lower altitude than the rest of the belts. It tends to do nasty things to solid-state electronics. E.g., at one point, there was a good chance of one or more random bits getting flipped in one of the computers on the space telescope as it passed through the anomaly. I think they worked around this by not having the memory active while it's there. -------------------------------------------------------------------------------- Carl J Lydick HEPnet/NSI: SOL1::CARL Internet: CARL@SOL1.GPS.CALTECH.EDU