Hi Ted: Tom Van Baak has an HP Journal article on his web page: http://www.hparchive.com/Journals/HPJ-1957-09-Sputnik.pdf that shows the change doppler frequency as measured at Stanford Research Institute in Menlo Park (almost a stone's throw from Stanford university and HP). Some cleaver thinking then leads to the idea that you can determine were you are if you know the satellite orbital parameters. That's what they did at John Hopkins University thus starting the Transit sat nav program for Polaris subs. http://sd-www.jhuapl.edu/Transit/index.html But Transit required atomic clocks so in the next generation satellite nav system the atomic clocks were designed out and we ended up with GPS. I think it's more than fair to say sputnik is the grandfather of GPS. If the orbital elements were known for Sputnik for the first few weeks of operation (while the beacon was transmitting) the doppler shift as seen at Menlo Park (and/or John Hopkins) could be calculated for a 40.0 Mc signal. more at: http://www.prc68.com/I/electron.shtml#Sputnik -- Have Fun, Brooke Clarke http://www.PRC68.com http://www.precisionclock.com http://www.prc68.com/I/WebCam2.shtml 24/7 Sky-Weather-Astronomy Cam ------------------------------------------------------------------------- Subscribe/Unsubscribe info, Frequently Asked Questions, SeeSat-L archive: http://www.satobs.org/seesat/seesatindex.html
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