| Acronym | Meaning |
| NIST | National Institute Of Standards And Technology |
| CDDF | Central Data Distribution Facility |
| WG/NGWR | Working Group For Next-Generation Weather Radar |
| MMSS | Multimission Support Service |
| RO | Solar Radius |
| ESTEC | European Space Research And Space Technology Centre |
| DASA | Defense Atomic Support Agency |
| TAO | Tropical Atmosphere Ocean |
| BRMS | Basin Rainfall Monitoring System |
| TOM | Trunk Operations Monitor |