The directory is part of NASA's Earth Observing System Data and Information System (EOSDIS) and also serves as NASA's contribution to the Committee on Earth Observation Satellites (CEOS), through which it is also known as the International Directory Network  (IDN).
The directory is a component of NASA's Earth Observing System Data and Information System (EOSDIS) and also contributes to NASA's participation in the Committee on Earth Observation Satellites (CEOS), under which it is referred to as the International Directory Network (IDN).