Aviation Dictionary

Selective availability (SA)

A satellite technology permitting the Department of Defense (DOD) to create, in the interest of national security, a significant clock and ephemeris error in the satellites, resulting in a navigation error.

Dictionary Term

Selective availability (SA)

Definition

A satellite technology permitting the Department of Defense (DOD) to create, in the interest of national security, a significant clock and ephemeris error in the satellites, resulting in a navigation error.

References

Pilot's Handbook of Aeronautical Knowledge · Federal Aviation Administration · 2023