Left: The graphic shows no impact on the Signal-in-Space Ranging Error (SISRE) after the migration, marked by the arrow. The SISRE represents the errors in orbit and clock offset, meaning the performance of space and ground segments was not affected by the system upgrade.
Right: GNSS receivers can derive a position, velocity and time (PVT) solution based on the signal of at least four satellites. The graphic presents the PVT before and after the migration, showing that Open Service users did not notice any effect.