GPS Block III

Figure 1: Ground-calibrated GPS Block III transmit antenna phase center variations (PCVs). (All figures provided by the authors).

May 15, 2023

New type on the block: Generating high-precision orbits for GPS III satellites

By Florian Dilssner, Tim Springer, Francesco Gini, Erik Schönemann, and Werner Enderle

Second Lt. Kelley McCaa, 2nd Space Operations Squadron satellite vehicle operator, and Airman 1st Class John Garcia, 2nd SOPS satellite systems operator, set satellite vehicle number-74, the first iteration of GPS Block III vehicles, as healthy and active to users Jan. 13, 2020, Schriever Air Force Base, Colorado,. Setting the vehicle healthy and active makes the satellite available for use by military and civilian GPS users around the world for agriculture, banking and navigation. (Photo: U.S. Air Force/Staff Sgt. Matthew Coleman-Foster)

January 15, 2020

2nd Space Operations Squadron sets first GPS III healthy and active

By Tracy Cozzens

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