| Acronym | Meaning |
| USMC | United States Marine Corps |
| IRAS | InfraRed Astronomical Satellite |
| GRS | Great Red Spot |
| IDA | International Dark-sky Association |
| ENAP | Energetic Neutral Atom Precipitation |
| MITI | Ministry Of International Trade And Industry |
| EAFB | Edwards Air Force Base |
| GRU | Glavnoye Razvedivatel'noye Upravileniye |
| MRO | Memory Read-Out |
| ELV | Expendable Launch Vehicle |