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Availability of GLONASS

INSTANT AVAILABILITY

Current values of position geometry factor PDOP on the Earth surface (angle ≥ 5°).

Date: 2021-09-16

INTEGRAL AVAILABILITY

Integral availability of GLONASS navigation (PDOP≤6) during the 24 hours period (mask angle ≥5°).

Date: 2021-09-16

Note: availability is calculated using a current almanac for the 24 hours period as percentage of time during which the condition PDOP≤6 is valid at mask angles ≥5°, where PDOP is a position (three-dimensional) dilution of precision. Step of calculation: 4 minutes in duration and 1 degree over the surface.