GPS Block III
Current generation of GPS satellites / From Wikipedia, the free encyclopedia
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GPS Block III (previously Block IIIA) consists of the first ten GPS III satellites, which will be used to keep the Navstar Global Positioning System operational. Lockheed Martin designed, developed and manufactured the GPS III Non-Flight Satellite Testbed (GNST) and all ten Block III satellites.[7] The first satellite in the series was launched in December 2018.[8][9][10]
Quick Facts Manufacturer, Country of origin ...
Manufacturer | Lockheed Martin | ||
---|---|---|---|
Country of origin | United States | ||
Operator | US Space Force | ||
Applications | Navigation satellite | ||
Specifications | |||
Bus | Lockheed Martin A2100M | ||
Launch mass | 3,880 kg (8,550 lb) [1] | ||
Dry mass | 2,269 kg (5,002 lb) | ||
Power | 4480 watts (end of life) | ||
Batteries | Nickel–hydrogen battery | ||
Regime | Semi-synchronous Medium Earth orbit | ||
Design life | 15 years (planned) | ||
Production | |||
Status | Production complete | ||
On order | 0 | ||
Built | 10 [2] | ||
Launched | 6 [3] | ||
Operational | 6 [4] | ||
Maiden launch | 23 December 2018 [5] | ||
Last launch | 18 January 2023 [6] | ||
Related spacecraft | |||
Derived from | GPS Block IIF | ||
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