121GPS

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121GPS

Publish on 24th July 2019 Category: Non-Fiction 0

BeiDou-2 (China)30 SVsregionally operationalglobal in 2020
GPSGNSSGlobal Navigation satellite System
Overview
(Navstar) GPS
US Military24 satellites (= space vehicle SV)altitude ~20,000 km
operatio...

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121GPS