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Makes me wonder: what system was in place in the time of the Apollo missions for determining the exact location of a reentering spacecraft? Was it just, "here's
by mithaler 14y ago
Makes me wonder: what system was in place in the time of the Apollo missions for determining the exact location of a reentering spacecraft? Was it just, "here's the probable drop zone, commence search-and-rescue"? I imagine GPS would make that a lot easier.
- planetguy 14y agoIt's transmitting a radio signal, triangulating to its source is simple.
- Arjuna 14y ago"Makes me wonder: what system was in place in the time of the Apollo missions for determining the exact location of a reentering spacecraft?" The system was called the Apollo Unified S-Band System. For further reading, this document describes the various telemetry parameters, operating spectrums and transmission details: http://history.nasa.gov/alsj/TM-X55492.pdf http://history.nasa.gov/alsj/TM-X55492.pdf This is a nice resource as well. Don't miss the articles at the bottom of the page from CQ that discuss the system. The Proceedings of the Apollo Unified S-Band Technical Conference document is definitely worth your time (it's also at the bottom of the page). http://www.ab9il.net/aviation/apollo-s-band.html http://www.ab9il.net/aviation/apollo-s-band.html