GPS Block IIF

On 5 February 2016, the final Block IIF satellite was successfully launched, completing the series.

Like earlier GPS satellites, Block IIF spacecraft operate in semi-synchronous medium Earth orbits, with an altitude of approximately 20,460 km (12,710 mi), and an orbital period of twelve hours.

[4] The operational constellation now includes Block IIR, IIRM, IIF and III variants.

Because the Evolved Expendable Launch Vehicles are more powerful than the Delta II, which was used to orbit earlier Block II GPS satellites, they can place the satellites directly into their operational orbits.

As a result, Block IIF satellites do not carry apogee kick motors.