| Acronym | Meaning |
| NSI | NASA Science Internet / NASA Standard Initiator / National Environmental Satellite Data And Information Service |
| GEODSS | Ground-based Electro-optical Deep-space Surveillance System |
| AFPRO | Air Force Plan Representative Office |
| ORBI | Stock Ticker Symbol For OSC |
| CFF | Columbus Free Flyer |
| WTR | Western Test Range |
| CIRRIS | Cryogenic InfraRed Radiance Instrument For Shuttle |
| DSP | Defense Support Program |
| MMH | MonoMethyl Hydrazine |
| SMS | Shuttle Mission Simulator |