| Acronym | Meaning |
| PTC | Passive Thermal Control |
| KB | Construction Bureau |
| NORAD | NORth American Aerospace Defense |
| GOX | Gaseous OXygen |
| DMR | Differential Microwave Radiometer |
| AXAF | Advanced X-ray Astrophysics Facility |
| NRSC | National Remote Sensing Centre |
| UVPI | Ultraviolet Plume Instrument |
| MSFC | Marshall Space Flight Center |
| EAFB | Edwards Air Force Base |