GetAwosSensorRefData ( parameter list ) : AwosSensorRefData
Returns relevant reference data in accordance with the parameter list. 
In addition to the current valid reference data the next valid reference data, if any, is returned.
Parameters:
All parameters are optional. The following parameters are supported:
- airportICAO : AirportICAO
 Returns only reference data for this airport. If not used, returns data for all relevant airports.
- onlyUpdatedAfter : DateTimeUTC
 Returns only reference data that is updated after "onlyUpdatedAfter".
Returns: