| Acronym | Meaning |
| EOS | Earth Observing System |
| DC | Delta Clipper |
| AGN | Active Galactic Nucleus |
| MMS | Multi-mission Modular Spacecraft |
| GSFC | Goddard Space Flight Center |
| OSS | Office Of The Space Station |
| IPMP | Investigations Into Polymer Membrane Processing |
| HRMS | High Resolution Microwave Survey |
| WR | Western Range |
| TRMM | Tropical Rainfall Measuring Mission |