Lockheed Martin Completes Work on Modernized GPS Satellites
From: KSBI TV
KING OF PRUSSIA, Pa. -- Lockheed Martin announced the delivery of the eighth and final satellite in the modernized Global Positioning System Block IIR production program to the Air Force.
The GPS constellation provides critical situational awareness and precision weapon guidance for the military. The worldwide system also supports a wide range of civil, scientific and commercial functions -- from air traffic control to the Internet -- with precision location and timing information.
There are currently three IIR-M spacecraft on-orbit, along with 12 original Block IIR satellites within the overall 30-spacecraft GPS constellation. Each satellite in the Block IIR-M series includes 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.
Based on the navigation user range error, which measures GPS accuracy, the Block IIR satellites enable properly equipped users to determine precise time and velocity and worldwide latitude, longitude and altitude to within one meter.
KING OF PRUSSIA, Pa. -- Lockheed Martin announced the delivery of the eighth and final satellite in the modernized Global Positioning System Block IIR production program to the Air Force.
The GPS constellation provides critical situational awareness and precision weapon guidance for the military. The worldwide system also supports a wide range of civil, scientific and commercial functions -- from air traffic control to the Internet -- with precision location and timing information.
There are currently three IIR-M spacecraft on-orbit, along with 12 original Block IIR satellites within the overall 30-spacecraft GPS constellation. Each satellite in the Block IIR-M series includes 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.
Based on the navigation user range error, which measures GPS accuracy, the Block IIR satellites enable properly equipped users to determine precise time and velocity and worldwide latitude, longitude and altitude to within one meter.
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