| Acronym | Meaning |
| OSI | Open Systems Interconnection |
| FAME | Formatting And Multiplexing Equipment |
| NASN | National Air Surveillance Network |
| GNSS | Ground Network Scheduling System |
| DLT | Digital Linear Tape |
| EAG | Exposure Assessment Group |
| EDF/ DER | Electricit? De France/ Direccion Des Etudes Et Recherche |
| NSI | NASA Science Internet |
| ACRIM | Active Cavity Radiometer Irradiance Monitor |
| ISCCP | International Satellite Cloud Climatology Program |