Block, SkipCaptcha, Upload, Automoderated users, Check users, delete, edit, Moderators, move, oversight, protect, rollback
19,320
edits
Changes
Jump to navigation
Jump to search
Line 26:
Line 26: + + + + + + + + +
applications
GPS receivers require that the clocks on the satellites be exquisitely well calibrated. The reason is that an error of 5 microseconds in the clock synchronization will lead to a position error of one mile. Achieving this accuracy requires that the clocks compensate for both the effects of [[special relativity]] (7 milliseconds per day) and [[general relativity]] (45 milliseconds per day in the opposite direction), leading to a total required correction of 38 milliseconds per day.<ref>http://www.astronomy.ohio-state.edu/~pogge/Ast162/Unit5/gps.html</ref>
GPS receivers require that the clocks on the satellites be exquisitely well calibrated. The reason is that an error of 5 microseconds in the clock synchronization will lead to a position error of one mile. Achieving this accuracy requires that the clocks compensate for both the effects of [[special relativity]] (7 milliseconds per day) and [[general relativity]] (45 milliseconds per day in the opposite direction), leading to a total required correction of 38 milliseconds per day.<ref>http://www.astronomy.ohio-state.edu/~pogge/Ast162/Unit5/gps.html</ref>
===GPS routing applications===
When smartphones, tablets, and similar digital devices are equipped with a GPS receiver, they can then utilize a number of different applications. There are many options, but some are as follows:
*Google maps (requires an internet connection)
*Waze (Now owned by Google, requires an internet connection)
*Apple Maps (Offline compatible)
*Magic Earth (Offline compatible)
*Organic Maps (Offline)
*OsmAnd (Offline)
==Similar systems==
==Similar systems==