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Additional Links
The Global Positioning System: The History of GPSThe history and story of how the Global Positioning System evolved from the development of the world's most accurate timepieces, atomic clocks, by physicists looking into the nature of time. Adapted from an article written by MIT scientist Daniel Kleppner.
http://www.linuxdevcenter.com/pub/a/linux/2003/01/02/ntp.html Accurate timekeeping is vital to accurate records, and accurate logs are the mainstay of good system administration. Glenn Graham explains NTP (the Network Time Protocol) and how to put it to work on your network
http://www.gps.gov.uk/ Resource from the UK Government intended for GPS-equipped surveyors, and Geographic Information Systems (GIS) developers who work with Ordnance Survey (OS) mapping. Includes the Passive Station Database, Active Station RINEX Data, and Coordinate Converter services.
http://www.david-taylor.myby.co.uk/ntp/NTPandMRTG.txt David Taylor's short description of how he uses MRTG (and SNMP) to gather and report statistics for NTP for his servers, including Perl scripts, shell scripts, and mrtg.conf examples
http://www.gps-society.org/ A free membership society to bring together the delegates, sponsors, and exhibitors for the Satellite Navigation Conference and to foster, develop, and assist the Global Positioning System disciplines.
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