Availability of GLONASS
INSTANT AVAILABILITY
Current values of position geometry factor PDOP on the Earth surface (angle ≥ 5°).
Date: 2024-12-21
INTEGRAL AVAILABILITY
Integral availability of GLONASS navigation (PDOP≤6) during the 24 hours period (mask angle ≥5°).
Date: 2024-12-21
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.
Ионосфера
Испытания НАП, оценка условий спутниковой навигации
Принципы навигации
Стандарт эксплуатационных характеристик открытого сервиса