| Acronym | Meaning |
| AL/APD | ALO Advance Planning Division |
| IPEI | Ionospheric Plasma And Electrodynamics Instrument |
| ACRIM II | Active Cavity Radiometer Irradiance Monitor |
| MOM | MASnet Operations Monitor |
| ADDE | Abstract Distributed Data Environment |
| ISFF | Integrated Surface Flux Facilities |
| ELDO | European Launcher Development Organization |
| IFYGL | International Field Year For The Great Lakes |
| LTLOG | Landsat Technical Working Group |
| DPS | Data Production Services |