Discover and read the best of Twitter Threads about #gpos
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@XsukysukyX @Ghostof_Atticus My father was a branch chief at NRL who retired in 1980. As far as I can tell, Dr West’s work on the GEOID was in the 1980s. Dad didn’t work on the GEOID so how he could make a mathematical error there escapes me. I doubt if he ever heard of Dr. West. 1/
@XsukysukyX @Ghostof_Atticus Dad designed the 1st satellite with solar cells which power #GPOS satellites. He designed 2 space tracking systems (Minitrack and the Naval Space Surveillance System System). Space tracking is key to predicting future positions of GPS satellites. In 1964, he started working on 2/
@XsukysukyX @Ghostof_Atticus on a Navsat using atomic clocks which again is a key feature of GPS. His Timation Dev Plan (1971) has all the major features of GPS (sat configuration, ground station positions and signal structure). gpsdeclassified.com/wp-content/upl… 3/
