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Leap Second Configuration

A leap second can occur on two dates, December 31 or June 30. It is announced approx. 6 months in advance. The GPS almanac changes to ‘announce’ the leap second, and GPS receivers must correctly implement the leap second at the proper time.

To configure a leap second for a scenario, Select the scenario, then navigate to the configuration View 2/3:

Leap Second field

Alternatively, the leap second can be configured in StudioView.

The leap second field can be set to -1, 0 or 1, and indicates a future change in the leap second value. While ΔtLS is set automatically based on information in the used ephemeris data, the value given in the leap second field will impact values related to LSF (Leap Seconds Future).