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Modernized GPS IIR-M Satellite

Lockheed Martin

The GPS IIR-M spacecraft offer a variety of enhanced features for GPS users, such as a modernized antenna panel that provides increased signal power to receivers on the ground, two new military signals for improved accuracy, enhanced encryption and anti-jamming capabilities for the military, and a second civil signal that will provide users with an open access signal on a different frequency. The Global Positioning System enables properly equipped users to determine precise time and velocity and worldwide latitude, longitude and altitude to within a few meters.

The second satellite was launched on Sept 25, 2006. It will join the first modernized IIR satellite, GPS IIR-14(M), successfully launched and declared operational last year and 12 other operational Block IIR satellites currently on-orbit within the overall 29-spacecraft constellation.
 

 
 

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  Updated: 09/26/2006

 

 

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