Study GroupsRadiocommunication Study Group 7Working Party 7C – Remote sensing systems: active and passive remote sensing applications in the Earth exploration-satellite service and systems of the MetAids service, as well as space research sensors, including planetary sensors – (WP 7C) Working Party 7C – Remote sensing systems: active and passive remote sensing applications in the Earth exploration-satellite service and systems of the MetAids service, as well as space research sensors, including planetary sensors – (WP 7C)