| Acronym | Meaning |
| AXAF | Advanced X-ray Astrophysics Facility |
| SOFI | Spray-on Foam Insulation |
| NRSC | National Remote Sensing Centre |
| SRM | Solid Rocket Motor |
| LMC | Large Magellanic Cloud |
| TCM | Trajectory Control Maneuver |
| APL | Applied Physics Laboratory (at Johns Hopkins) |
| AC | Atlas Centaur |
| ESPC | European Space Power Conference |
| MMPO | Mission Management And Planning Office |