Asri-unix.1104 net.space utzoo!decvax!ucbvax!C70:sri-unix!Schauble.Multics@MIT-MULTICS Thu Mar 25 21:10:48 1982 South Atlantic Anomaly I used to know someone at the NASA Goddard tracking center who could have told you about this in great detail. I have to work from (faulty) memory. The South Atlantic Anomaly is an area lying roughly between Bermuda and Ascension Island. Within this area, satellites don't work right, the earth's magnetic field does strange and upredictable things, spacecraft radios receive odd things, and so on. Goddard would try to avoid either sending commands to satellites or having them be executed when the bird was within this region. Any Bermuda Triangle fans out there?? Paul