Assertion: satellite | /r/HasProperty | available
Facets:
value: every second revolution
type: TEMPORAL
Source sentences:
text: Its period is one half day, so that the satellite is available for operation over the targeted region for six to nine hours every second revolution.
text: What satellites are available?
text: When more than four satellites are available, the calculation can use the four best, or more than four simultaneously (up to all visible satellites), depending on the number of receiver channels, processing capability, and geometric dilution of precision (GDOP).
text: Some modern receivers are able to use both GLONASS and GPS satellites together, providing greatly improved coverage in urban canyons and giving a very fast time to fix due to over 50 satellites being available.