Global Positioning System (GPS) satellites in T2K really only apply to the Americans as they are the only ones who have or had an operational GPS satellite network in the 1990's.
The Russian (Soviet) GLONASS network didn't come online until December 1995, although the Soviets may have put up enough satellites before then to establish a network if the USSR hadn't collapsed. To date the Russians have only had a sporadic network as they have had a lot of trouble keeping enough satellites in orbit to make it work.
Europe's Galileo System and China's COMPASS network is not yet operational as of 2016.
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